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Comments

Petem

unbelievable...!! if you read some of those links... you have to shake your head.... it's the same "OLD" mentality of... there is no problem.. and when there is a problem we'll look at it then....

just like the environment.. we ignored it until there is a problem.. NOW.. it cost to much money to fix....

Scotty.. hurry.. beam me the hell up....

James

Well Petem,

I don't think anyone will pay attention until someone gets killed. Even then we will here, "Oh it was just a one in a million chance." We will see about that!!
Everywhere humans go we leave something of ourselves. Unfortunately that means our junk too. I would hate for the night sky to become a cluttered orbital landfill:(

Energizing, Captain

Rick Stilson

I personally am willing to fund a billion dollar space shuttle mission to retrieve each of the million space junk objects, so that we can clean up the space environment...

If it saves One! Life!, its worth any price!

Realistically, we will have to wait for more advanced technology, which might allow an automated device with solar powered ion drive to slowly go around a collect the largest objects. In the meanwhile, we will have to measure the risk/cost-benefit ratio, and accept the occasional impact. The fractional cost of each impact, spread over the cost of all the current space activity, is acceptable.

Geoff Newbury

About the lowest cost route would be to add a control system to the Shuttle's external fuel tank and boost it all the way to orbit on launch, then fill it with expanding foam and put it on intersecting orbit with some of the smaller pieces of space junk. The junk would end up trapped in the foam. When 'full' or the fuel is de-orbit and let it burn up.
Cons: the tank would need to have its own fuel/control system designed and installed, and determining the proper orbital intersection for a 'catch' would be difficult as the collision energy would probably have to fall into a small range.

Scribs

What we need is a....gigantic space Molly Maid! Now where's Spaceball One when you need it?

Seriously, the automated approach isn't just smart, it's pretty much the only way we can go. We don't have a choice, as spending the amount of man-hours it would take to clear the skies is too great, and the chance of something bad happening to any astronauts running around from garbage pile to garbage pile would be too fuel intensive. There's also the fact that so many maneuvers would entail additional dangers that aren't regularly faced on a standard mission.

So, who's for investing in the SpaceRoomba?

Deep Thought

You mean, boost it to greater than maybe 600 km where all the junk we care about is? Sure. Add a sizable RCS to the flimsy shell of the fuel tank on a man-rated mission? No problem. Intersect the junk orbits at just the right speed to absorb the junk without tearing off pieces of the foam and tank and creating more junk while ensuring the deorbit system remains unharmed and propellant bottled up? Piece o' cake. Then, perform controlled reentry with an aerodynamically unstable, humongous dirty space sponge? Oh, yeah, NASA does that every other week.

Noah Problemo

This is just like global warming. Fake!

Steve

Possibly, if the space junk is made up of metal, the satellite sent to retrieve the junk could have some kind of magnetic attractor, and the pieces could float to, say, its collecting bay.

Paul

I do not know why anyone would want to deorbit this stuff in the first place; it cost a pretty penny to put it up there. Why not collect all the space junk in a reasonably safe orbit (not at LEO where atmospheric drag still has some effect), all in one location so when we develop space manufacturing techniques, we can smelt down this old junk in a solar powered furnace to acquire some of the raw materials we would need to build the next generation of the ISS.

To move this stuff around, we could develop solar-powered ion tugs to move this stuff into a safe orbit. We have had some good successes with ion spacecraft so far.

We throw too much away here on Earth. There would be a lot of perfectly good titanium, aluminum and such out there is space, why not reuse it instead of trashing it. It is already there, why not reuse it.

Paul

Silly me too! Why waste all that xenon for ion power when maybe a perfectly good solar sail would do the trick.

coldpudding

Where did I put my giant space net?

FMG

What we need is a laser platform in the right orbital distance such that it can then shoot the dead space debris, which then forces that debris back down to Earth at a safe crash zone. Meaning the laser platform is not meant to blow up the debris, but just heat up the outer section or so, pushing the debris back to Earth. Maybe have more then one laser platform, like one at 10k km, another at 20k km, and so on.

Really, how many space debris are really out there? Surely its over a thousand pieces, and everytime we launch something else, we are adding more dead debris into that equation.

SCIENCE AND SCIENTIST - Inquiring into the Origin of Matter and Life

We thought you might be interested --


SCIENCE AND SCIENTIST
Inquiring into the Origin of Matter and Life
January-March 2008

Bhaktivedanata Institute's latest quarterly newsletter
is now available online.

You can download the January-March 2008 issue from:
http://scienceandscientist.org/current.php

____________ _________ _________ ____________ _________ _________ __

What's it about?

Modern science has generally been directed toward investigating
the material world, excluding consideration of the conscious
scientist who is essential to the whole process, since, of
course, the very existence of the scientific endeavor itself
depends upon consciousness. Complete scientific knowledge must
consequently include both objective science and subjective
consciousness.


In addition to other programs, Bhaktivedanta Institute's Science
and Scientist Newsletter is humbly offered to inspire scientists
and scholars to contribute their sincere efforts toward
developing this grand synthesis. The result will be valuable not
only for helping to better understand the "hard" problems of
science such as the nature and origin of life and the cosmos, the
mind-brain connection, artificial intelligence, etc. But the
pressing problems of ethics in science, world peace, and
interfaith dialog will also benefit from a more inclusive
scientific worldview.


In our modern era science and religion are the predominating
influences determining the fate of mankind. Promoting and
developing a culture of harmony between such diverse fields has
the potential to expand our conception of reality and advance
human knowledge in the new millennium, in which it is said the
study of life will be pre-eminent. Let us welcome the dawn of
that new epoch with great hope and determined endeavor.
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John Hickey

I can't believe how Nieve people are. If every piece of the 13,000 pieces of space junk were the size of a schoolbus or even a Tractor trailer then the odds of any of them ever colliding are infanitesimal. Think about it this way. How many trucks are in your home State? More than 13000 I'll wager and yes they occasionalyy crash but now spead that 13000 over the entire planet. They would not even see eachother. Now make the planet 5 times larger and put the trucks at different levels and this is the reality. Artist rendition like the Spacejunk picture that shows dots the size of Michigan give a false portrayal of the facts. File this with Cell phones that blow up gas stations and KFC really isn't chicken. MYTH

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Within a planetary system; planets, dwarf planets, asteroids, comets, and space debris orbit the central star in elliptical orbits. A comet in a parabolic or hyperbolic orbit about a central star is not gravitationally bound to the star and therefore is not considered part of the star's planetary system.

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