Huge Defunct Satellite to Plunge to Earth Soon

[YosemiteSam]

Don't be too worried though. The chance of you getting hit by it are 1 in 21 trillion. :laugh2:

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Heads up! That's the word from NASA today (Sept. 7) given the impending re-entry of a 6.5-ton satellite through Earth's atmosphere.

The huge Upper Atmosphere Research Satellite (UARS) is expected to re-enter Earth's atmosphere in an uncontrolled fall in late September or early October. Much of the spacecraft is expected to burn up during re-entry, but some pieces are expected to make it intact to the ground, NASA officials said.

The U.S. space agency will be taking measures to inform the public about the pieces of the spacecraft that are expected to survive re-entry.

Complete Story

 

[joseephuss]

I remember when Skylab plunged to Earth. Not that it has anything to do with this topic. I just like sounding old.

 

[big dog cowboy]

If you follow the link in the story there is some pretty cool looking "space junk" up there.

 

[Signals]

1 in 21 trillion. :laugh2:

Do I feel lucky???​

​

http://i177.***BLOCKED***/albums/w236/starkist_2007/MESILLY.jpg​

 

[Ranzo]

Don't be too worried though. The chance of you getting hit by it are 1 in 21 trillion. :laugh2:

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Roughly about the same odds that anything or anybody will drag me away from my games this weekend.


BTW, curious as to whether the feds might be interested in obtaining a hunk of this debris in the unlikely event it should fall into the hands of John Q Publik? Might they be willing to barter or would they just seize it?

Don't answer that.

 

[YosemiteSam]

If you follow the link in the story there is some pretty cool looking "space junk" up there.

All this junk is cruising around up there at probably over 17,000mph! Even a marble hitting a satellite could be devastating.

Each dot is a piece of known space junk that is at least four inches in size.

 

[Muhast]

Just curious. What causes the satellite to burn up while re-entering our atmosphere but NOT burn up when it leaves originally?

*Note, I probably learned this at some point, but have no recollection of it.

 

[Signals]

Just curious. What causes the satellite to burn up while re-entering our atmosphere but NOT burn up when it leaves originally?

*Note, I probably learned this at some point, but have no recollection of it.

It has something to do with Peter Graves.

 

[YosemiteSam]

Just curious. What causes the satellite to burn up while re-entering our atmosphere but NOT burn up when it leaves originally?

*Note, I probably learned this at some point, but have no recollection of it.

Friction with the atmosphere. Its going slow when it lifts off and speeds up as the atmosphere thins. Coming down it's already hauling *** and hit the atmosphere. The friction causes it to heat up to extreme temperatures and it burns up. If it's large sometime it won't completely burn up and part of it will hit the ground. That will be the case here.

 

[Ranzo]

Just curious. What causes the satellite to burn up while re-entering our atmosphere but NOT burn up when it leaves originally?

*Note, I probably learned this at some point, but have no recollection of it.

I'll guess. The propulsion through the atmosphere is with much less velocity as it exits than when an object smashes into it upon entry. And of course the heat build up as it is hurdling through space is tremendous, so that by the time it makes it makes it through the barrier(atmosphere), when friction increases, so much matter is burned off the object before terrestrial impact there is little mass intact. FWIW, it's a better question for a physicist.

 

[Ranzo]

Friction with the atmosphere. Its going slow when it lifts off and speeds up as the atmosphere thins. Coming down it's already hauling *** and hit the atmosphere. The friction causes it to heat up to extreme temperatures and it burns up. If it's large sometime it won't completely burn up and part of it will hit the ground. That will be the case here.

:clap2:

 

[CowboyMcCoy]

Do I feel lucky???​

​

http://i177.***BLOCKED***/albums/w236/starkist_2007/MESILLY.jpg​

F=ma

Force equals mass times acceleration.

Newton's law...

 

[CowboyMcCoy]

All this junk is cruising around up there at probably over 17,000mph! Even a marble hitting a satellite could be devastating.

[/IMG]

Could be? I mean, they are working on new methods to prevent this so we, or they, can travel to mars. It's one of the main reasons we haven't landed humans on Mars.

 

[CanadianCowboysFan]

Don't be too worried though. The chance of you getting hit by it are 1 in 21 trillion. :laugh2:

===================================================

Heads up! That's the word from NASA today (Sept. 7) given the impending re-entry of a 6.5-ton satellite through Earth's atmosphere.

The huge Upper Atmosphere Research Satellite (UARS) is expected to re-enter Earth's atmosphere in an uncontrolled fall in late September or early October. Much of the spacecraft is expected to burn up during re-entry, but some pieces are expected to make it intact to the ground, NASA officials said.

The U.S. space agency will be taking measures to inform the public about the pieces of the spacecraft that are expected to survive re-entry.

Complete Story

hopefully it hits Dumson75 in the head, at least he wouldn't be hurt

 

[CliffnDallas]

Just curious. What causes the satellite to burn up while re-entering our atmosphere but NOT burn up when it leaves originally?

*Note, I probably learned this at some point, but have no recollection of it.

Atmospheric friction.

 

[kristie]

Do I feel lucky???​

​

http://i177.***BLOCKED***/albums/w236/starkist_2007/MESILLY.jpg​

:laugh2: :laugh2:

 

[SaltwaterServr]

BTW, curious as to whether the feds might be interested in obtaining a hunk of this debris in the unlikely event it should fall into the hands of John Q Publik? Might they be willing to barter or would they just seize it?

Don't answer that.

Considering it might be contaminated by hyrdazine or could have used radioactive decay to keep the internal mechanisms from freezing up in the cold of space, you most likely don't want to be touching it. It'll give you a permanent orange afro.

 

[Ranzo]

Considering it might be contaminated by hyrdazine or could have used radioactive decay to keep the internal mechanisms from freezing up in the cold of space, you most likely don't want to be touching it. It'll give you a permanent orange afro.

Something wrong with that?

 

[YosemiteSam]

Something wrong with that?

No.

 

[Ranzo]

No.

Shehe looks like a rooster.