OT:What Goes Up Must Come Down

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OT:What Goes Up Must Come Down

Postby The Sushi Hunter » Thu Feb 12, 2009 9:18 am

Well I feel so much better now that NASA seems to think that everything is a.o.k.

http://www.sfgate.com/cgi-bin/article.c ... .DTL&tsp=1

2 orbiting satellites collide 500 miles up

Wednesday, February 11, 2009
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(02-11) 14:47 PST Cape Canaveral, Fla. (AP) --

Two communications satellites have collided in the first-ever crash of two intact spacecraft in orbit, NASA said Wednesday.

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The collision occurred Tuesday nearly 500 miles over Siberia. The crash produced a pair of massive debris clouds, and the magnitude of the situation won't be known for weeks at least, said NASA spokesman Kelly Humphries.

However, any risk to the international space station, which orbits below the collision course, is thought to be low. There also should be no danger to the upcoming space shuttle flight, targeted for liftoff no earlier than Feb. 22, "but they're continuing to analyze any possible risk," Humphries said.

The collision involved an Iridium commercial satellite, which was launched in 1997, and a Russian satellite launched in 1993 and believed to be nonfunctioning. Each satellite weighed well over 1,000 pounds.

There have been four other cases in which space objects have collided accidentally in orbit, NASA said. But those were considered minor events and involved parts of spent rockets or small satellites.
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Postby jrnyman28 » Thu Feb 12, 2009 9:46 am

Nah, didn't happen!
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Postby The Sushi Hunter » Mon Feb 16, 2009 7:32 am

Sometimes history repeats itself. Pretty interesting that Iridium is the name of one of the satellites that collided and the material "Iridium" is in theory what caused the dinosours to become extinct. http://en.wikipedia.org/wiki/Iridium

Also what I think is really great about this is that this material iridium which the satellite was made of, can withstand great temperatures, thus being able to re-enter earth's atmosphere without burning up. This stuff may be raining down on us eventually. Maybe it's time to start smoking drugs. :lol:

Space crash called 'catastrophic,' lots of debris
Experts say tens of thousands of pieces could orbit Earth for 10,000 years. Space crash leaves behind dangerous trash
Feb. 13: The collision of two communications satellites in Earth's orbit may pose a bigger threat than first feared. NBC's Brian Williams reports.

updated 8:59 a.m. PT, Fri., Feb. 13, 2009
MOSCOW - The crash of two satellites has generated an estimated tens of thousands of pieces of space junk that could circle Earth and threaten other satellites for the next 10,000 years, space experts said Friday.

One called the collision "a catastrophic event" that he hoped would force the new U.S. administration to address the issue of debris in space.

Russian Mission Control chief Vladimir Solovyov said Tuesday's smashup of a derelict Russian military satellite and a working U.S. Iridium commercial satellite occurred in the busiest part of near-Earth space — some 500 miles (800 kilometers) above Earth.

"800 kilometers is a very popular orbit which is used by Earth-tracking and communications satellites," Solovyov told reporters Friday. "The clouds of debris pose a serious danger to them."

Solovyov said debris from the collision could stay in orbit for up to 10,000 years and even tiny fragments threaten spacecraft because both travel at such a high orbiting speed.

James Oberg, a NASA veteran who is now space consultant, described the crash over northern Siberia as "catastrophic event." NASA said it was the first-ever high-speed impact between two intact spacecraft — with the Iridium craft weighing 1,235 pounds (560 kilograms) and the Russian craft nearly a ton.

"At physical contact at orbital speeds, a hypersonic shock wave bursts outwards through the structures," Oberg said in e-mailed comments. "It literally shreds the material into confetti and detonates any fuels."

Most fragments are concentrated near the collision course, but Maj.-Gen. Alexander Yakushin, chief of staff of the Russian military's Space Forces, said some debris was thrown into other orbits, ranging from 300 to 800 miles (500-1,300 kilometers) above Earth.

David Wright at the Union of Concerned Scientists' Global Security said the collision had possibly generated tens of thousands of particles larger than 1 centimeter (half an inch), any of which could significantly damage or even destroy a satellite.

Wright, in a posting on the group's Web site, said the two large debris clouds from Tuesday's crash will spread over time, forming a shell around Earth. He likened the debris to "a shotgun blast that threatens other satellites in the region."

Meanwhile, there's no global air traffic control system that tracks the position of all satellites.

The U.S. military tracks some 17,000 pieces of space debris larger than 2 to 4 inches (5 to 10 centimeters), along with some 900 active satellites. But its main job is protecting the international space station and other manned spacecraft, and it lacks the resources to warn all satellite operators of every possible close call.

"With the amount of spacecraft and debris in orbit, the probability of collisions is going up more rapidly," said John Higginbotham, chief executive of Integral Systems Inc., a Lanham, Maryland-based company that runs ground support systems for satellites.

Oberg said the limited accuracy of tracking data and computer calculations makes it impossible to predict collisions, only their probability. He said most satellites also have little fuel to escape what most likely would be a false alarm.

"The collision offers a literally heaven-sent opportunity for the Obama administration to take forceful, visible and long-overdo measures to address a long-ignored issue of 'space debris,'" Oberg said.

In January 2007, China destroyed one of its own defunct satellites with a ballistic missile at an altitude close to that of Tuesday's collision, creating thousands of pieces of debris which threatened other spacecraft.
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Postby Rick » Mon Feb 16, 2009 7:46 am

They need a way to collect that shit and blast it toward the Sun. Burn that shit up.
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Postby The Sushi Hunter » Mon Feb 16, 2009 7:50 am

Rick wrote:They need a way to collect that shit and blast it toward the Sun. Burn that shit up.


I was thinking that they could get a giant magnet out on a long fishing pole like thing from a space craft and just "dredge" it up with that. Sort of like that episode of Futurama when they picked bender up off the moon after he was caught sleeping with the Crushinator.
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