Showing posts with label Asteroids. Show all posts
Showing posts with label Asteroids. Show all posts

Monday, January 05, 2009

Chinese-Russian Probe To Explore Red Planet, Radiation And Phobos

After establishing an alliance between each other, it looks as if the two major eastern space powers will be exploring "all things Mars" by sending a probe to analyze not only the Martian weather, but its asteroid moon as well.

(Mars Daily) The first joint Chinese-Russian mission to Mars is set to take off in October and reach the red planet in August 2010, an exploration project designer said.

A Russian Zenit rocket will launch a Chinese Yinghuo-1 satellite and a Russian Phobos-Grunt unmanned lander, Chen Changya, chief designer of the China-Russia Mars exploration project, told Hong Kong's Wen Wei Po newspaper.

Phobos-Grunt is expected to study Mars from orbit, including its atmosphere and dust storms, plasma and radiation, before landing on Phobos, one of Mars' two small moons.
Phobos is one of the prime locations in our solar system, and any nation (or group of nations) that is able to secure this tiny satellite will probably end up dominating the Martian planet as a future space power.

Political ambitions aside, the Phobos-Grunt should help provide more information regarding how much radiation impacts the red planet, as that could determine just how safe living on Mars may be.

Wednesday, December 10, 2008

One Solar Space Power To Rule Them All?

Note: Article inspired by NASA Watch, The Planetary Society and 21st Century Waves


Warning: This is an extremely long article, so you may want to grab a quick snack as you read through this post.

Anyone who has ever played board games such as Risk and Monopoly knows that the overall purpose of the game is for one player to dominant the board by either taking territory or securing financial resources ahead of their rivals.

The same rule also applies to the final frontier as evidenced by the space race emerging in Asia, as well as between the US and China.

While every nation probably has their own "road map" for conquering the final frontier, there are no less than five critical locations (ranging from asteroids to dwarf planets to even moons) that a space faring nation must secure if they desire to remain (or become) a solar space power in our star system.

First Stop: Luna

Orbiting a mere light second away from Earth, the Moon could easily be described as humanities second home due to its proximity towards our birth world.

Although the lunar surface may lack water (at least in abundance), its white regolith can be "easily" converted into breathable oxygen, allowing our species to survive beyond our earthen cradle without the need to constantly borrow air from our home world.

Often seen as free on planet Earth, oxygen in space will be literally worth its "weight" in gold, and any nation that can find a way to inexpensively produce lunar oxygen will have an advantage later on over its rivals (and may even be able to sell the precious gas for a profit).

While its oxygen rocks could enable humanity to live off world, its reduced gravity may make the tiny sphere appealing to asteroid miners seeking out near earth objects (aka NEO's).

Since micro-gravity has a way of eroding bones and muscles, destroying immune systems, weakening hearts and strengthening deadly bacteria, asteroid miners may prefer to live lunar side (with frequent trips to mine these NEO's), than to spend the majority of their time floating next to a space rock in micro-gravity.

Even though a space faring nation (both current and aspiring) could develop a sustainable presence around the Moon (and nearby space rocks) due to its resources and location, it may be wise to travel beyond Earth's orbit towards more promising worlds (in order maintain its status a future space power).

Next Stop: The dwarf planet Ceres

Although some would consider it "insane" to skip the red planet, heading to Ceres first will ensure that a future space power has the resources to fund its expansion (note: despite the fact that doing so means sacrificing the prestige of sending the first man or woman to Mars).

Ceres strategically orbits within the metal rich region of the asteroid belt, making this dwarf planet prime real estate (at least to asteroid mining corporations).

Any nation establishing a colony on Ceres would be able to send teams of astronauts to secure nearby metallic space rocks as their own, potentially selling them to future allies or harvesting the mineral resources for themselves.

While the dwarf planet lacks any resources of its own, Ceres is suspected of hosting more "fresh water" than Earth itself, which would enable future asteroid minors to potentially grow their own food off world without depending on frequent supplies from Earth.

It would also allow Ceres to act as a interplanetary rest stop between Mars and Jupiter, not to mention a safe haven as well (just in case the asteroid belt becomes infested with space pirates).

Since most of humanities attention will probably be focused on Mars after the Moon, there will probably be very little competition establishing a dominant presence on Ceres (if not conquer it entirely for themselves).

Third Stop: The Martian moon called Phobos

Despite its popularity in science fiction, Mars will probably attract very few visitors due to the extreme difficulty in landing large payloads on the surface of the red planet.

Coupled with the fact that Mars lacks major resources of any kind (note: at least that we know of), the crimson world may only be inhabited by scientists, various cults and individuals disillusioned by Earthen (and Lunar) governments.

Even though the red planet may not be of much economic worth (at least initially), one of its asteroid moons Phobos could be converted into an enormous space station in order to make it easier to process metals harvested from the asteroid belt.

Since the sunlight on Mars is much stronger than in the asteroid belt, a future mining corporation could use the Sun's rays to melt asteroid metals en mass before exporting them towards Earth (and Luna).

Although working on an asteroid moon may be profitable, living upon one may not due to the side effects of micro-gravity.

Even though a future miner could always counter the effects of micro-gravity with various drugs and electronic shocks, it may be wiser to settle upon the red deserts below as Mars's gravity is approximately 38% Earth norm.

In order to reduce the cost of transporting personal (and equipment) to and from the Martian surface, a future space power may need to construct an "orbital space elevator" on the near side of Phobos.

While constructing this would ultimately open up Mars to the rest of humanity (which a future space power could charge a fee for rivals to use), it would also allow them to import water from the Martian surface (instead of depending upon either Earth or Ceres for supplies).

Fourth Stop: The Jovian moon Callisto

Often regarded as a dead world, the Jovian moon Callisto may be of high worth to any space faring nation, due to the fact that it is one of the few radiation safe worlds in our star system.

Even though Mars and the Moon may have "celebrity status" throughout our solar system, neither of the worlds has a global magnetic field to protect their spheres from the wrath of the Sun.

Callisto on the other hand is not only protected by Jupiter's magnetic field, but it orbits just beyond the gas giant's radiation belt, enabling future colonists to raise families (and pets) upon this world without fear of growing a third eye ball.

While Callisto may not have any immediate value outside of being a midway point between the inner solar system and Saturn, establishing an outpost here would enable a future space power to "easily explore" its brother Ganymede.

Although Ganymede's orbit takes it into the heart of Jupiter's radiation belts, a properly shielded colony could use Ganymede's global magnetic field to raise an abundance of crops with the help of bees (instead of relying upon ants who may not need a magnetic field to pollinate our green friends).

While it would probably be impossible for one space faring nation to conquer both of these worlds for themselves, conquering these moons early on (especially Callisto) could give a rising space power significant influence over the future of the Jupiteran system (not to mention the next gas giant as well).

Last Stop: The methane moon called Titan

Even if humanity finds a way to harvest the helium-3 locked away within Luna's crust (not to mention the atmosphere of Uranus), the cost of mining it may put it out of reach for most interplanetary commercial spacecraft.

Since supplies of Uranium and Plutonium could easily become unavailable for space travel (as many nations on Earth may need them for energy or defense), finding an inexpensive alternative could determine whether or not a space faring nation thrives or merely survives in the depths of our star system.

One way to guarantee that a future space power has the neccessary fuel to maintain its fleet (at least inexpensively) is to establish outposts near Titan's methane lakes (which may contain an abundance of methane/ethane within them).

While it would not be surprising to see Titan heavily colonized in the fairly distant future (by various countries), securing this world early on would enable a space faring country to establish tremendous influence throughout the solar system (or at least within the ringed system of Saturn).

What about the other worlds?

Although their are plenty of other interesting worlds ranging from the burning crust of Mercury to the frozen wasteland of Neptune's moon Triton, these worlds may not attract that much interest in the future (at least as far as we can tell right now).

Even though everyone probably hopes that humanity would put aside their differences and explore the final frontier in peace, six thousand years of recorded history seems to hold a dim view regarding this viewpoint (as one can glimpse the wars that have raged upon our planet).

Whether or not humanity decides to conquer every sphere and space rock within our solar system only time will tell.

But either way, these four worlds (plus one asteroid moon) may be the key that determines which space faring nation not only dominates our solar system, but perhaps guides us unto the next one as well.

Wednesday, October 29, 2008

Melting Asteroid Metals With Martian Sunlight

(Hat Tip: Gizmodo and Dark Roasted Blend)

Whether or not we head to the asteroid belt before Mars, one thing is clear--while we may have the means to land upon and (hopefully) sift the metal from "the rubble" (or useless rocky material), we probably will be unable to inexpensively melt the metals on site.

Even though lasers are always an option, future colonists may not be too thrilled with using extra power to melt down the space metals, as that would only add to the overall cost of shipping the material elsewhere.

While some may be content to pass the cost onto the customer, it may be cheaper (and wiser) to ship the metals to the red planet in order to have the metals melted down via Martian sunlight.








Since Martian sunlight operates at half the strength of Earth's, the solar furnace would probably have to be slightly altered to achieve the same strength as its bluer big brother.

Although some may suggest that the future asteroid mining industry could simply ship the metals to Earth, it may be wiser to divert the route towards Mars, as the red planet orbits about 100 million kilometers closer (at Aphelion) than Earth.

Martian colonists would also have the advantage of utilizing the crimson worlds two orbiting moons, allowing mining fleets to melt their metals upon either Phobos or Deimos without having to land on the Martian surface (which has a fairly steep gravity well).

Either way, Mars may play a critical role in our quest to colonize the solar system (which may make it a prime spot for future real estate).

Wednesday, August 06, 2008

Moon Base Plus Amor Asteroids Equals Solar Powered Satellites?

(Note: Inspired by Ken Murphy of Out of the Cradle)

If extraterrestrials were (un)fortunate enough to visit our rowdy planet, they would realize that our civilization is powered by death. For our civilization to survive, to expand, and to literally keep the lights on our species must harvest the compressed liquid of billions of dead things--also known as fossil fuels.

While alternative energy sources such as solar, wind and "bio-fuel" do exist, they may not be enough to keep up with the future energy demand (hat tip: Life After the Oil Crash) of our ever growing population.

With energy supplies on Earth finite at best, some individuals have looked beyond the heavens above in order to satisfy our "energy cravings" below.

By simply constructing solar powered satellites (aka SPS) above our blue world, proponents argue that we would be able to not only meet energy demand, but hopefully create a greener environment at the same time.








(Video: A presentation to both Presidential Candidates of 2008 about the need to develop SPS for our planet).

Unfortunately one of the major obstacles to constructing an SPS is the cost of launching material into space, which may make an SPS unreasonable unless a space elevator is constructed (although by the time one is built, it may already be too late).

Since launching building material from Earth may be too expensive, our species may have to hunt for (and utilize) precious metals off world in order to reduce the cost of constructing these massive behemoths--which means future colonists may have to harvest not only lunar soil, but nearby asteroids as well.

Even though the Moon's surface is composed of mostly oxygen, it also contains silicon, a key ingredient for producing solar cells.

While the Moon also contains other elements such as iron and aluminum (which could provide extra resources for constructing these massive solar panels), lunar colonists may prefer to harvest these elements elsewhere as both of these elements would have practical uses "lunar side" (iron for construction and aluminum for radiation shielding).

Instead of scouring the lunar surface in search of extra building material, humanity instead may choose to harvest nearby space rocks orbiting between our homeworld and the red planet--also known as Amor asteroids.

Unlike the asteroids located in the main belt, Amor asteroids orbit much closer towards Earth, with many of them traveling around in stable orbits.

While their proximity towards our Earthen cradle may make them attractive for scientists, its their abundance of minerals and metals that may make them priceless for space minors.

One Amor asteroid in particular,  433 Eros may have enough precious metals within its tiny frame to be worth trillions of dollars (which should provide more than enough material to construct several SPS's in space--with cash to spare for financing the project as well).

Even though there are still many challenges to building an SPS (not to mention where to locate the rectenna), our species may have to wait until we begin to harvest our "local neighborhood" before we have enough funds to actually create these energy wonders (without bankrupting our civilization).

Note: Due to lack of time, images will be inserted later on.

Update: Images inserted (with credits given).

Friday, January 04, 2008

NASA To Locate Most Earth Killing Asteroids

While colonizing the heavens above us is important to our species, defending our home world ranks even higher on the scale.

Fortunately NASA (along with China) will be scanning the sky above looking for asteroids that can pose serious threats to our Earthen cradle.

(Computer World) By the end of this year, NASA hopes to find about 90% of the largest asteroids that could potentially strike Earth, a blast that could throw dust into the atmosphere and cause firestorms and acid rain. These asteroids can be as large as mountains but are at least 1 kilometer (3,280.8 feet) in diameter. NASA estimates that 900 of these objects are in potentially hazardous range of Earth.


Defending our planet from space rocks will probably become a priority long after we expand our presence throughout the solar system.

Even if our species were able to send millions of individuals to colonize Mars, Ganymede, Callisto and Saturn's Titan, losing Earth would be devastating for our species, as there is no known world like it.

Hopefully lessons learned defending our planet on Earth can be duplicated elsewhere, as an asteroid impact can be one of the few objects that can turn a solar city into a mass graveyard.

Friday, October 19, 2007

Carnival Of The Space Geeks (Sorting Out Science)


Sam Wise of Sorting Out Science hosted this week's Carnival of Space.

Despite being new to the event (at least to this author) Sam created a very professional layout for the Carnival, with a mash of links to not only some of the bloggers posts, but to related media sites as well.

We even had mention of space elevators, with the Marc of the Space Elevator Reference and Ted via the Space Elevator Blog.

Be sure to subscribe to either of those blogs as they are covering the Space Elevator Olympics (aka Space Elevator Games) in which their are currently six teams competing (you can find video's over here).

Other interesting posts included:



Next week's Carnival will be hosted by Pamela over at Star Stryder, and if anyone is interested in submitting a post to the Carnival of Space (as its always great to hear from fresh minds), please visit this link.

Wednesday, October 10, 2007

Colonizing Ceres Before Mars Could Save The Red Planet

Some people say Mars is our next home. Other people say Mars is utterly worthless. Regardless of the viewpoint, humans will probably end up visiting the place for "eternal glory," if not for scientific reasons.

Whether or not our species actually settles the red planet is highly questionable. Unlike Earth's Moon, Mars lacks major resources of any kind that would make colonizing the planet worthwhile. Unless those crimson deserts can provide some return on investment, it may be wiser to turn Mars into a penal colony, than attempting to recreate the world into a second home.

But humanity may be able to justify settling Mars by diverting its attention towards the asteroid belt first--and the key towards conquering the asteroid belt, as well as Mars may lie upon the dwarf world Ceres.

Despite their major differences, both Mars and Ceres share a few similarities. Both worlds harbor abundant supplies of water, respectively, and both worlds are located closer to the metal rich "zone" of the asteroid belt than our home world.

Ceres however is located within the "mineral field of dreams," dancing around the sun between 2.5-3 AU (or astronomical units). This places the icy world in the heart of the metal rich zone, the majority of which can be found orbiting our star between 2 and 3.5 AU.

Its prime location gives it an enormous advantage over the red giant, as well as a motivation for both national governments and companies to visit this lonely dwarf planet.

Ceres also has a lower gravity well than either Earth or Mars, making rocket launches off of the asteroid king very inexpensive. Boasting 3% Earth gravity, Cerian colonies would be able to easily transport precious metals back to our home world (from other asteroids) without the need for large amounts of rocket fuel.

Ceres's prime location as well as its gravitational benefits could (like Earth's moon) help jump start our solar economy, if not give it a second wind. But how would an active mining industry aid a future Martian colony? After all, if Mars has very little to offer our species financially, why even bother colonizing it?

Despite the fact that Ceres has an abundant supply of water, that supply is finite and will not last forever. As the number of asteroid colonies increase throughout the asteroid belt, so too will the demand for water. Although Earth has plenty of water to spare, it may be simply too expensive to rocket the precious liquid to quench the thirst of asteroid minors.

As the demand for water increases, so will the cost of transporting it from Ceres's dwindling supplies. While launching water from Earth may not be affordable, launching it from Mars probably will. With only 38% Earth gravity, the crimson planet would have a much shallower gravity well than our blue home world, enabling it to meet the future water demand at an affordable price.

Although Mars may ultimately provide a second habitat for humanity, it may make business sense to refocus our efforts on the asteroid belt first. Not only would it sustain political support from various Earth governments over time (mainly because of the money), but it would satisfy the "why space" questions in the public, without resorting to a short hand list.

(Image Credits: NASA)

Note: Due to lack of time, images (and some links) will be added later.

Update: Added several paragraphs as well as edited a few sentences for grammar and clarity. Also added several images and links as well.

Tuesday, August 21, 2007

Carnival Of The Space Geeks (Sweet 16)


Brian Wang of Advanced Nanotechnology hosted last weeks Carnival of Space, which this author was (unfortunately) unable to participate in.

Nevertheless, there were several interesting posts featured, with a few controversial posts entering this space geek roundup, such as:



But the best post thus far was by Paul Gilster of Centauri Dreams.

(Centauri Dreams) Flight International's story on this study reports that a nuclear interceptor could deflect a Near Earth Object (NEO) in the range of 100 to 500 meters if launched two years before impact. Larger NEOs might be deflected with a five year lead time. The idea here isn't to blast the asteroid into rubble, much of which would doubtless fall to Earth in any case, but to deflect it by a 'stand-off' detonation near the object. This could be handled in various ways depending on the sequence and the number of available warheads, and running the numbers shows it might just work.


A stand off blast toward an incoming asteroid could enable the human species to survive not only on Earth, but on both the Moon and Mars as well, as raining space rocks are fairly frequent upon those worlds, respectively.

If humanity can figure out more ways to deter these planetary killers from ever threatening our future home worlds, then colonizing our solar system will become a little less dangerous (at least for future generations).

Wednesday, August 01, 2007

Video: New Way For Landing Humans On Asteroids


Although our species has barely mastered the concept of landing humans upon terrestrial worlds, we have yet to demonstrate the ability to land on rocky ones.

Despite the fact that humans could always send robots to the surface of these space rocks, our governments may be more comfortable sending humans to perform this dangerous job.

But before people can dream about mining asteroids, we are going to need to figure out how to land on them first--a problem that NASA and DigitalSpace may have already solved.




(Video: A unique approach for sending humans to safely land on asteroids. Credits: DigitalSpace)


(USA Today) For starters, gravity is almost non-existent on an asteroid, which can be as small as only a few hundred feet across or as big as tens of miles in diameter. And because asteroids have rocky, sometimes crumbly surfaces, DigitalSpace's proposed spacecraft includes a system that would anchor it like a boat in a harbor. The design includes a ring of airbags with sensors to detect the stability of the ground. Once a landing is deemed secure, barbed tethers would deploy to latch the craft onto the surface of the NEO. Like car airbags, the ship's airbags would compress against an asteroid's surface.

"On an asteroid, it's a different environment that requires a whole new way to land a spacecraft," said Bruce Damer, president and CEO of DigitalSpace. "It's like insects being blown around by the wind; they have all this technology to hold onto your arm."


If humanity can master the art of landing upon these floating space rocks, then we will be able to not only mine these asteroids for precious metals, but perhaps turn lunar asteroids into space stations.

Although space tourism, helium-3 and solar powered satellites have the potential of jump starting our efforts off world, asteroid mining could finance our species efforts towards conquering our solar system (and hopefully beyond).

Wednesday, July 25, 2007

Could An Orbital Space Elevator On Phobos Open Up Mars?


Like many of the worlds that orbit the Sol star, Mars has the potential to play a significant role in our future solar economy. The red planet could easily serve as a stepping stone towards humanity colonizing other worlds such as Ceres, Ganymede, and beyond.

But before we can dream about conquering this red gem, humanity may need to figure out how to land humans safely upon Mars, as the crimson planet's atmosphere may pose problems for future explorers.

If humanity is ever going to conquer Earth's favorite neighbor, then scientists are going to have to figure out a way to transport large payloads to the crimson world below.

Although a space elevator would compliment Martian colonies by providing a low cost method of delivering goods to the surface, such a structure would easily be destroyed by the red planet's global storms that dust the surface every three Martian years.

But despite the fact that constructing a space elevator upon Martian soil may be not be feasible, constructing an orbital one (that does not touch the ground) from the base of its nearest moon may not.

The moon Phobos orbits its guardian planet at less than 6,000 km, a distance that should be within easy range of any powerful rocket. With the red planet's atmosphere extending only to about 11 kilometers, a strong space tether could be constructed just above the clouds, allowing easy access for smaller space craft seeking easy access to the stars.

Another advantage an orbital "Phobian space elevator" would have is the availability of the space port towards the Martian masses. Phobos orbits its parent world in under eight hours, seeing up to three sunrises in an average Martian day.

Constructing an orbital space elevator from underneath this asteroid moon belly would enable colonists to have frequent access towards needed supplies off world, as well as a dependable quick exit if terraforming Mars takes a turn for the worse.

An orbital space elevator underneath Phobos could ultimately open up the crimson world towards human habitation, and allow us to not only land colonists upon this rusty world, but quickly transform Mars into a second home.

Note: Due to time constraints, images will be inserted later on in this post.

Update: Images added.

Wednesday, July 18, 2007

Mars: Future Slum World Or An Industrial Paradise?


Of all the worlds that gracefully orbit Sol, none has the potential for chaos or success like the red planet. Known mostly for its rusty appearance, Mars is a world often both romanticized and criticized as humanities second home.

But unlike many of the other worlds that dance around the Sun, colonizing Mars may end up being a financial nightmare for the (future) solar economy, providing little promise of bearing any fruit, at least in the near future.

If Mars is ultimately determined to be utterly worthless, then it may make more sense to skip this crimson planet for Jupiter's Ganymede, or even Callisto. After all, why spend the resources creating a future welfare planet when Earth could use those resources elsewhere?

The Martian planet's greatest strength is the fact that water seems to be abundant underneath the surface. But even though water is common on Earth, Mars may become valuable real estate because of its location near the asteroid belt.

Lying between the orbits of the red desert planet and the Jovian king Jupiter, the asteroid belt comprises of many different types of asteroids. Some of these floating space rocks have value, while others may only find appeal from future space fugitives.

The asteroids that seem to posses the most value are M-type (or Metallic) asteroids which orbit within the middle region of the asteroid belt. Fortunately for Mars, the crimson world lies "slightly closer" to these metallic wonders than Jupiter, where a large number of these seem to cluster around 2.7 AU (or 403,914,600 km).

The red planet's prime location gives it an advantage at mining many of these asteroids first (or at least at a cheaper cost). By exchanging the processed metals for fuel, food, etc., the barren world would be able to support a thriving economy, or at the very minimum survive financially.

If settlers from other worlds happen to establish outposts within the rocky belt, Mars could easily trade buried ice water with future asteroid colonies for metals, or convince a few brave souls to mine the belt for Martian glory.

In the distant future, other icy worlds such as Ceres, Ganymede and Callisto may rival the Martian economy by competing for Earth's favor. But if Martian citizens play their cards right, they could not only secure their position as a major trading power, but perhaps as an industrial paradise as well.

Wednesday, July 11, 2007

Asteroid Mining: The Most Dangerous Job In The Solar System


When a person thinks of the future of space, one often imagines rockets buzzing across our star system at incredible speeds, space stations thriving in the vacuum of space or solar cities gracing the surfaces of foreign moons and planets.

But while all of these things may come to pass (perhaps even a space elevator or two) the future reality is that there are some solar occupations that may entail individuals to risk their lives in order to keep our interplanetary economy going.

One of these jobs just might be an asteroid miner.

Unlike some of the other potential occupations throughout our star system, asteroid miners will face dangers unlike any other explorer. Often located in sparse regions throughout our star system, metallic asteroids will probably not become major spots for tourism, making them lonely companions for asteroid mining outposts.

With most of these invaluable asteroids tens of millions of miles away from the nearest colony world, asteroid miners will find themselves heavily dependent upon supplies for food and water. Their isolation will also make them prime candidates for space pirates, not to mention feuding powers from Earth, Mars and the Jovian systems.

Unless these outposts are protected by a space fleet, they may soon find their boring schedule filled with being invaded by unwelcome guests.

Another danger of asteroid miners will be radiation. Since most (if not all) asteroids lack a magnetic field, asteroid outposts will be at the mercy of the Sun's wrath, not to mention cosmic rays from abroad. Although outposts will probably have magnetic shields surrounding their bases, this does not guarantee that the rocks that they mine upon are free from being radioactive.

Despite the fact that future asteroid miners will probably have machines deal directly with the floating space rocks, their may be a possibility of these miners contracting cancer (later on in life), which could threaten future retirement plans (as treating cancer can be quite expensive).

If radiation and security were not enough to worry about, asteroid miners also face the dangers of micrometeorites piercing holes through their suits and stations, or (even worse) encountering a meteor shower from an incoming comet.

Future outposts will probably have to rely upon the eyes (and scientific "ears") of astronomers to warn them of the dangers of nearby comets, although they may have to "take a gamble" when dealing with incoming space pebbles as armor may prove useless against these solar bullets.

But despite the fact that these dangers surround future asteroid miners, there presence in our star system will be desperately needed. Asteroids have the potential of supplying invaluable resources, and the purity of metals could be worth up to $500,000 a ton.

Although this future job may be classified as one of the most dangerous occupations humanity has ever known (within our star system), space colonists may be willing to take on the risk in order to bring back the fruit of their labor towards major population centers living upon terrestrial worlds.


Note:
Due to lack of time, images will be added later on to this post.


Update: Images added.

Update (7/12): Corrected grammatical errors (replaced minors with miners).

Thursday, June 21, 2007

Carnival Of The Space Geeks (The Eighth Wonder)


Fraser Cain is hosting the eighth round of the Carnival of Space, and has some fairly interesting posts lined up including:

  • Paul Gilster on Centauri Dreams discusses Modeling Exoplanet Atmospheres and makes an interesting note that the further one travels from our Sol Star, the more water we find.

  • Dave Rankin on Tales of the Heliosphere discusses how ingrained the 24 hour cycle is to Earth life, which may make colonizing space a little bit more difficult (than previously thought).

  • Fraser Cain from Universe Today analyzes the theory about microscopic black holes buzzing inside Earth (scary if you ask me)

  • Amanda Bauer on Astropixie reviews how devastating an asteroid impact would be to planet Earth (with a cool video as well!)

  • Louise Riofrio from the ever enlightening A Babe In The Universe talks about the beauty and value of the International Space Station, with an image that makes you wish you were there.


But one of the best posts has to go to Henry Cate of Why Homeschool who discusses the future "gold rush" within our asteroid belt:

(Why Homeschool) When I was fourteen I read a book about asteroids. One of the points in the book has stuck with me over a couple decades. The book said that a small asteroid of about one cubic mile was worth about $50 billion. This was in the 1970s. Nowadays the number would be closer to $300 billion. Scientists have found that asteroids have a greater density. There appears to be a greater concentration of metals when compared to the earth. [...]

Early space development may be largely financed by tourists, at least in the short term. Over the years more people and industry will start to move out into space. Mining the asteroids may prove to be the next gold rush. Stories are told of miners walking along the river banks picking up nuggets of gold. It may be that at some point men in rocket ships will be able to fly to the asteroids and pick up valuable metals.


The asteroid belt could very well be the key towards humanity colonizing our solar system. Although the influx of metals and minerals from asteroids will probably drop the prices due to economics of scale, the availability of these metals will translate into more resources available to colonies and star ships.

Despite the fact that tourism is currently driving humanities quest to the stars, hopefully mining these dancing space rocks can fund our ability to not only conquer our star system, but nearby ones as well.

Wednesday, May 23, 2007

Vesta And Ceres: The Dawn Of A New Age

(Image: Asteroid Vesta in false color. Credit: NASA)


Like a hostile mountain range separating civilization from the wilderness, the asteroid belt divides our Earthen and (future) Martian homes from the Jovian frontier. In this wilderness of floating boulders, lies a region that is often regarded as rubble, forgotten rocks of little beauty and appeal.

But in this unglamorous region of space lies riches untold for those who are willing to discover it, and with NASA heaven bent on sending its own across our star system, our species may be taking its first steps in locating our first asteroid homes.

(The Flame Trench) Mounted atop a United Launch Alliance Delta 2 rocket, NASA's Dawn spacecraft is scheduled to blast off from Launch Complex 17B at Cape Canaveral Air Force Station on June 30. The launch window that day will stretch from 5:13 p.m. to 5:33 p.m.

The spacecraft will be setting sail on a mission to study the solar system's two largest protoplanets, Ceres and Vesta. Flying within the asteroid belt between Mars and Jupiter, Dawn will swing by Vesta in October 2011 and Ceres in February 2015. It will be the first spacecraft to study two asteroids on the same mission.


Although both of these asteroids differ in composition and nature, both Vesta and Ceres hold much promise as future outpost colonies, especially for future mining industries. Despite its size, Vesta has shown surprising evidence of past geologic activity, which may indicate that heavier metals (and minerals) lie just beneath its surface.

With part of its mantle exposed on the surface, Vesta should provide a wealth of information for geologists, not to mention help "kick start" mining operations in the asteroid belt.

While Vesta provides a financial incentive to harvest the asteroid belt, Ceres may provide the "life necessities" for us to remain there. Rumored to harbor enough "fresh water" to rival our home world, Ceres may live up to its name and allow humanity to one day farm this world, helping to feed those who desire to live in this rocky region of space.

Although NASA's Dawn mission may not appear as glamorous as a visit towards Mars or Jupiter, it may enable us to gain a wealth of information that will inevitably help fund our trip to the stars.

(Image: Ceres cut out, Credit: NASA, ESA, and A. Feild)

Thursday, February 08, 2007

Penal Solar Colonies, Anyone?


(Inspired by SpaceBlog Alpha)

Roses are red, and violets are blue, but if we go to space, we need a prison, or two? Despite all of the glorious wonders of visiting the worlds that dot our star system, one regrettable custom we will need to duplicate on other worlds are prisons.

Space is not for the faint of heart, and with the dangers of radiation and asteroids already facing future colonists, adding violent offenders to the list may make living off world less desirable.

With the recent case of a solar citizen attempting to kidnap and possibly murder a rival, future explorers may want to consider off site penal colonies as a way to maintain order in an already dangerous universe.

Penal colonies are nothing new to our species, something Australia can easily testify about. Australia was distant enough to prevent ex-cons from returning, yet within reach for the British empire. But where would future Earth, Luna Maria, and Martian citizens place their space prisoners at? On undesirable locations of course!

Located less than 60 million kilometers (or 36 million miles) from the Sun's surface, Mercury makes an excellent spot for a penal colony. With temperatures approaching 427o Celsius, those imprisoned on the surface (or below it) would be highly motivated to remain within their protective biosphere.

Although this planetary Alcatraz could be quite useful for a few centuries, sooner or later this world is bound to become "desirable," which may result in its eventual colonization as a civilized world.

Another possible (an perhaps favorable) location for a prison world would be inside an asteroid. Although our solar system is filled with many valuable asteroids, most of these space rocks are made up of a Carbonaceous material which holds little value for miners and explores.

Since these asteroids generally lie near the outer rims of the asteroid belt, their isolation away from planetary systems could serve as useful prisons to house our most dangerous minds.

Despite being a more extreme choice, carving out jail cells on a enormous comets (called Centaurs) could possibly serve humanities interest as well. Many of these large comets do not enter within the inner solar system and their isolation away from major systems may make them prime locations for future colonists, especially for residents of lunar gas giants.

Although an on site prison might be cheaper, the chance of prison breaks and escapes alone might put any nearby habitation on edge. A penal colony may serve a communities long term interest by not only deterring other crimes, but also protecting the colony from immediate acts of vengeance.

Friday, January 26, 2007

Space Tractors Could Defend Earth Against Asteroids


Despite the Hollywood glitz of Armageddon and Deep Impact, no human bomb would be strong enough to either alter the asteroid (and its fragments) course or destroy the incoming space rock.

However, where nuclear bombs fail, space tractors may prevail.

(Washington Post) NASA astronaut and former University of Hawaii solar physicist Edward Lu is calling for a new spacecraft that would divert asteroids on a path to slam into Earth.

The small space tractor, costing between $200 million and $300 million, would hover near an asteroid to exert enough gravitational pull that the space rock's orbit would change and a collision with our planet would be averted, Lu said before a crowd packed into a 300-capacity auditorium at the University of Hawaii-Manoa Monday night.

"We're only trying to get a really tiny change in the velocity of the asteroid to prevent an impact," he said.


Although it is not as spectacular as a nuclear detonation, a space tractor seems to have a greater chance at averting a serious asteroid strike. Lu research may come in handy as one asteroid, Apophis, is scheduled to approach Earth around the year 2029, and some scientists are concerned that its second trip in 2036 may hit our planet.

Hopefully one can be built in order to test Lu's theory out, as this technology would not only benefit Earthlings, but future Martians, Lunatics Lunar colonists and other potential home worlds orbiting our star.

Wednesday, December 27, 2006

Can NASA Save Us From Asteroid Armageddon ?

Probably not, but that does not seem to be stopping the world's largest space agency from planning a mission on these space rocks.

(Space.com) Progress is being made on defining a human mission to an asteroid. Experts at several NASA centers are sketching out a prospective piloted stopover at an asteroid-a trek that could return samples from a targeted space rock as well as honing astronaut proficiency and test needed equipment for other space destinations. [...]

Meanwhile, NASA is wrapping up a report required by the U.S. Congress on how best to search for, catalog and even deal with the hazard of Earth-bruising rocks from space. That space agency report is to be turned over to Congress by year's end.


Although we will not be landing on the asteroid, NASA hopes to gain more knowledge about these space rocks in order to perfect future space missions (which will be quite helpful around those Martian moons).

Currently humanity has no way to deflect asteroids heading straight towards Earth (so in that regards we are screwed) but we may be able to alter their orbits via a space tractor.

Tuesday, December 12, 2006

Raining Asteroids Could Threaten Martian Colonists

Although not as dangerous as the Moon, (as Mars is much larger) future colonists on Mars may need to construct underground bunkers just in case a space rock is headed in their direction.

(Space.com) "If you were to live on Mars for about 20 years, you would live close enough to one of these events to hear it," said researchers Michael Malin, [chief scientist at San Diego, California's Malin Space Science Systems] who led the study. "So there’d be a big boom and you’d know there was an impact crater." [...]

Malin said that it was by chance [Kenneth Edgett, a Malin Space Science Systems researcher] spotted an image with a new crater and recalled a similar view taken years earlier by the MGS orbiter. Their subsequent survey found the new craters, which range in diameter from seven feet (two meters) to 486 feet (148 meters), and an average impact rate of about 12 per year.


Since Mars is the closest world to the asteroid belt, this should not come to a surprise. Future colonists may want to consider taking shelter near a Mons volcano, as they may provide some cover (especially if there is a cave nearby).

However, unless scientists can find a way to thwart these future space rocks, Mars may become known as the "bloody planet".

Saturday, December 02, 2006

Space Rocks Could Endanger Future Moon Colonists

As humanity heads back towards the moon, we may have more than just radiation from the sun (or dust from the soil) to deal with. Colonists may also have find a way to cope with space rocks raining down from on high.

(Space.com) Potentially dangerous small space rocks are smashing into the Moon a lot more often than was expected, according to an ongoing NASA study.

"We've now seen 11 and possibly 12 lunar impacts since we started monitoring the Moon one year ago," said Bill Cooke, head of NASA's Meteoroid Environment Office. "That's about four times more hits than our computer models predicted." [...]

"The flashes we saw were caused by Leonid meteoroids 2 to 3 inches (5 to 8 cm) in diameter," Cooke said today in a NASA statement. They hit with energies equal to 150 to 300 pounds of TNT.


Although it may be impossible to shoot down and track such objects entering lunar territory, it may not be improbable to create a strong enough barriers (or force fields) that can sustain damages from such impacts.

If so, then colonizing the Moon would quickly become a reality, allowing us to build communities and use our lunar neighbor as a springboard for Mars.

Friday, November 24, 2006

Earth Killing Asteroids Being Tracked By China

China is using a new telescope to track down possible NEO (Near Earth Objects) that may threaten planet earth.

(Space Daily) China has built a new Schmidt telescope, the largest of its kind in China, to keep track of near-earth objects (NEO) that could threaten Planet Earth. The telescope, measuring one meter in diameter, has been tested in a branch observatory belonging to Mount Zijin Observatory under the Chinese Academy of Sciences, in east China's Jiangsu Province. [...]

"It is quite likely that some asteroids and comets hit the earth in the past, and it might happen again in the future," said [Yang Jiexing, a researcher with the observatory].

"We built this detector to know in advance of any approaching danger, and be able to figure out how to deal with it," he said.


Cataloging these dangerous space rocks is of great concern not only for our planet, but for any others we are fortunate enough to colonize. Although the Earth is blessed with an atmosphere hostile towards incoming objects, it may not be enough to stop planet killers, which may be as small as a half of mile wide.

Protecting Earth will become a priority, even after we begin to colonize and terraform other worlds. Earth is a unique world in our solar system, and it is good to see another space power lending her efforts in defending our fragile paradise.