Shattered Russian Rocket Spawns Space Junk Cloud

[Buster's Uncle]

Shattered Russian Rocket Spawns Space Junk Cloud
By Mike Wall | SPACE.com – 1 hr 25 mins ago.. .

 
Part of a failed Russian rocket broke apart in Earth orbit last week, creating hundreds of new pieces of space junk around our planet, U.S. military officials say.

The United States Strategic Command's Joint Functional Component Command for Space (JFCC-Space) is tracking the cloud of debris, but the extent of the cloud and its potential impact on the International Space Station and other spacecraft are unclear at the moment, military officials said.

The space junk incident, which occurred Oct. 16, involved the Breeze-M upper stage of a Russian Proton rocket that had failed in a mission to launch two satellites. Excess fuel remaining on board the upper stage may have caused it to explode, experts say, though the official cause remains unknown.

"The resulting debris field and impact to space objects on orbit are being assessed at this time; however, JFCC-Space is currently tracking over 500 pieces of debris," Lt. Col. Monica Matoush, a Department of Defense spokeswoman, told SPACE.com via email. "We expect that number to fluctuate as work to characterize the debris field continues." [Worst Space Debris Events of All Time]

The Proton rocket launched Aug. 6 carrying two telecommunications satellites. Its Breeze-M upper stage shut off prematurely, however, stranding the satellites in the wrong orbit.



Breeze-M upper stages that suffered similar failures broke apart in orbit in 2007 and 2010. Some bits from the Oct. 16 breakup have begun falling back to Earth, U.S. officials said.

"Although some of the pieces have begun to re-enter, most of the debris will remain in orbit for an extended period of time," State Department spokesman Jamie Mannina said in a statement. "U.S. Strategic Command and its Joint Space Operations Center will use established processes and procedures to notify the appropriate governments, agencies and companies of potential collisions and predicted re-entries."

Mannina said the U.S. and Russian governments are working together to investigate the breakup and its consequences. No immediate risks to the space station or other active satellites have been identified at this time, he added.

Earth is surrounded by a gigantic and ever-growing cloud of space junk — stuff like spent rocket bodies, dead spacecraft and the fragments generated when these objects collide.

NASA estimates that this cloud contains 500,000 pieces bigger than a marble and 22,000 as large as a softball. The number of flecks at least 1 millimeter in diameter probably runs into the hundreds of millions.

All of this fast-moving junk poses a threat to the 1,000 or so operational satellites currently zipping around the planet, as well as to the International Space Station and other crew-carrying spacecraft.

http://news.yahoo.com/shattered-russian-rocket-spawns-space-junk-cloud-215510809.html

Again:  two huge wads of foamed aerogel tethered a mile or so apart to put them in atypical-speed concentric LEOs.  Deorbit/reenter after a proper interval and repeat a few hundred times. 

Cost: many millions, almost entirely in launch costs, because a few barrels of chemicals, some string and a small booster with gyro in the middle ought to be very cheap and nearly foolproof.  Still peanuts in space money, and it ought to be an international team effort by the very nature of the thing.

Payoff: priceless, because we're not about to part with everything for which satelites have become indespensable.

[Unorthodox]

Be more fun to use them as target practice...

[Buster's Uncle]

Use what?  The junk?  The satellites that have yet to be destroyed by junk?  Great honkin' wads of aerogel?  The international spaceflight community?

Lasers sufficiently powerful might vaporise all those, but aimed from where that will never hit anything valuable in the background?

[Unorthodox]

Yes.  It's all targets. 

[Buster's Uncle]

Interesting.  Aren't you a part of the international spaceflight community, in some small way?

Wouldn't you rather leave an intact skeleton to your kids?