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Aerodynamics May Explain Space Shuttle Breakup: possible causes, consequences of Columbia disaster
TIME.com ^ | February 1, 2003 | Jeffrey Kluger

Posted on 02/01/2003 10:18:41 AM PST by Timesink

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To: RossA
Can the ISS be left unattended? It regularly fires rockets to counteract orbit-decay. Even if this could be automated, it needs a resupply of fuel.

It can be left unattended indefinitely as long as astronauts can at least get up there occasionally to perform maintenance. Without that minimal level of maintenance, though, the ISS runs a serious risk of becoming uninhabitable. And, of course, all the experiments and stuff currently on-board would be lost.

61 posted on 02/01/2003 11:58:14 AM PST by Timesink (I offered her a ring, she gave me the finger)
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To: Timesink
Flight restrictions now being put into effect ... as reported by TV News chopper-crews ...
62 posted on 02/01/2003 11:58:57 AM PST by _Jim
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To: Movemout
Don't forget that we replaced the Challenger, with the Enterprise I think. It would take a couple of billion dollars.

Endeavor (sp?). The pricetag 17 years ago was $2.1 bil. It'll be a heck of a lot higher now.

I've read through the responses - I don't know. I'm betting on a combination of all of the above.
63 posted on 02/01/2003 11:59:39 AM PST by Desdemona
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To: Movemout
It does. Don't forget that we replaced the Challenger, with the Enterprise I think. It would take a couple of billion dollars. This is a real, honest to God nexus in manned space operations. I look forward to seeing it resolved.

I sure hope so. BTW, it was replaced with the Endeavor. I hope the tooling was not destroyed after that shuttle was complete.

I have worked in the space program for the past 22 years and I have seen my share of mission failures. :-(

64 posted on 02/01/2003 11:59:42 AM PST by RadioAstronomer
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To: Timesink
Now that we've lost two shuttles out of a fleet of five

I thought we had three operational prior to todays tragedy. Does anyone know for sure?

65 posted on 02/01/2003 12:00:06 PM PST by paul51
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To: Timesink; RossA
Can the ISS be left unattended? It regularly fires rockets to counteract orbit-decay. Even if this could be automated, it needs a resupply of fuel.

It can be left unattended indefinitely as long as astronauts can at least get up there occasionally to perform maintenance. Without that minimal level of maintenance, though, the ISS runs a serious risk of becoming uninhabitable. And, of course, all the experiments and stuff currently on-board would be lost.

Remember, the Russians still can fly crews to the space station.

66 posted on 02/01/2003 12:01:22 PM PST by RadioAstronomer
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To: paul51
I thought we had three operational prior to todays tragedy. Does anyone know for sure?

Everyone today's been saying four, and we're down to three now.

67 posted on 02/01/2003 12:04:07 PM PST by Timesink (I offered her a ring, she gave me the finger)
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To: paul51
I thought we had three operational prior to todays tragedy. Does anyone know for sure?

There was an accident, fueling related IIRC, in the 1970's that killed some people. The ship was on the launch pad at the time. This is the second Shuttle disaster.

68 posted on 02/01/2003 12:05:48 PM PST by supercat (TAG--you're it!)
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To: Timesink
Endeavor, Atlantis, Discovery remain
69 posted on 02/01/2003 12:09:36 PM PST by alancarp
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To: Desdemona; Endeavor
Of course, it was the Endeavor. I have too much junk cluttering up my memory. I agree, $2B is probably not enough in today's dollars.

"I have worked in the space program for the past 22 years and I have seen my share of mission failures. :-("

I have too worked in this business for a long time, and your comments do not take into account the many missions unborn because of failures on the ground (testing), failures of our politicians to fund good ideas, failures of the executive branch to recognise good ideas, failures due to incompetent program managers, etc etc.

It is a wonder that we have made the progress that we have. I grieve for the loss of human life today, and its effect on the friends and families of these brave sojourners, but we must also acknowledge the many more deaths that have occurred over the years right here on planet earth developing and testing the technology employed in our space program

70 posted on 02/01/2003 12:11:19 PM PST by Movemout (RIP you who dare and lose)
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To: RadioAstronomer
Hell of a day, eh? :(
71 posted on 02/01/2003 12:18:39 PM PST by general_re
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To: Movemout
I have too worked in this business for a long time, and your comments do not take into account the many missions unborn because of failures on the ground (testing), failures of our politicians to fund good ideas, failures of the executive branch to recognise good ideas, failures due to incompetent program managers, etc etc.

I think this reply was for me, and yes, I completely agree.

72 posted on 02/01/2003 12:19:32 PM PST by RadioAstronomer
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To: Timesink
Additional debris reported to be found in the vicinity of Venus and Joshua Tx. These cities are considerably west of the *main* debris field in East Texas.
73 posted on 02/01/2003 12:20:15 PM PST by _Jim
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To: general_re
Hell of a day, eh? :(

Indeed. :-( Brings back the Challenger for me also. I was in a mission control room monitoring that launch at the time.

This time, I woke up to hear about the disaster.

74 posted on 02/01/2003 12:21:58 PM PST by RadioAstronomer
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To: RadioAstronomer
"Remember, the Russians still can fly crews to the space station. "

True, but how long will ISS be viable without substantial US participation. If we have to pay Russians to do that which we intended to do then the program will crumble. There has been an incredible anount of friction between the USA and Russia during the execution of this project. I just can't see a way out of this box which would be palatable to NASA and Congress. Of course, I might be biased. I remember when the Space Exploration Program lost out to ISS by one vote, in 1992 I think. I was employed by the Space Exploration Office and decried the circular reasoning that allowed the justification of ISS and shuttle.

75 posted on 02/01/2003 12:27:11 PM PST by Movemout (RIP you who dare and lose)
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To: Movemout
"public by official fiat."

As I recall, the transcript had comments that the family wanted with held due to their content.

Also, don't you think it's unlikely any meaningful conversations took place giving the rapid break up?

76 posted on 02/01/2003 12:28:11 PM PST by bribriagain
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To: RadioAstronomer
This time, I woke up to hear about the disaster.

Same here - I was sleeping late today. I rolled downstairs around 10 AM to find my wife already watching the news of it.

Funny that we just had those remembrance threads about Challenger just a few days ago...

77 posted on 02/01/2003 12:28:13 PM PST by general_re
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To: Timesink
In honor of the Columbia astronauts, would someone please post the official NASA picture of them, on this and every thread about this tragedy? Their faces deserve to be remembered. Thanks...
78 posted on 02/01/2003 12:28:53 PM PST by FBD (May God be with the families of "Columbia")
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To: Timesink
I see we had Endeavor (OV105), Atlantis (OV104), Discovery (OV103) and Columbia (OV102). Columbia was the oldest and first ot go through the retrofit program.
79 posted on 02/01/2003 12:30:45 PM PST by paul51
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To: Timesink
Sorry if this has been covered, I'm posting then reading.

Just heard the Mission Control replay:
CAPCOM "we read your tire pressure messages and copy your last"
CDR: "Uh, roger ..."  [loss of comm occurs]

IMO, this wasn't an instantaneous event but rather happening over a short period of time. Seems to me that if it was a spacecraft attitude problem, the words would have been different. I'd say a tile problem jumps to the head of the speculation line. Occam's razor and all that.

80 posted on 02/01/2003 12:32:53 PM PST by NonValueAdded
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