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Doomed Russian Spacecraft Is Falling From Space, But Where Will It Fall?
Space.com ^ | Leonard David,

Posted on 05/06/2015 6:42:05 PM PDT by BenLurkin

Round and round it goes, but exactly where a failed Russian space cargo ship will fall to Earth on this week is a guessing game.

On April 28, Russia's uncrewed Progress 59 supply ship streaked into orbit atop a Soyuz launcher, intended to dock with the International Space Station. But shortly after liftoff ... Russian mission control team could not command the cargo vessel packed with nearly 3 tons of supplies.

Current forecasts predict that the Progress should fall to Earth in an uncontrolled, destructive nose-dive on Thursday (May 8) between 3:11 a.m. and 5:26 a.m. EDT (0711-0826 GMT). Some media reports from Russia are citing a Friday re-entry target. A more refined re-entry date and time will become available, according to experts tracking the spacecraft

...

There is the potential for pieces of Progress 59 to survive the fiery plunge through Earth's atmosphere and reach the surface, Krag said.

"With every re-entry of a large structure from space you can expect a small fraction to survive," Krag said. But there is an extremely small probability, he said, that somebody would be injured from the fall. "That's because the number of objects that survive is small … and the area over which they are distributed is so huge and mostly unpopulated," Krag said. Also, the large fuel load onboard Progress should burn up before it reaches Earth, he said.

Bill Ailor, a Distinguished Engineer and a re-entry and space debris expert at The Aerospace Corporation in El Segundo, California, agrees with Krag's view.

Ailor said that the rule of thumb for re-entering spacecraft is that anywhere from 10 percent to 40 percent of the dry mass of the vehicle — the mass without propellants, liquids, and stored gas — will survive and impact the Earth's surface.

(Excerpt) Read more at space.com ...


TOPICS: Science; Travel
KEYWORDS: iss; nasa; russia
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1 posted on 05/06/2015 6:42:05 PM PDT by BenLurkin
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To: BenLurkin

I’ve never understood the science behind objects burning up upon entering the atmosphere. Interesting.


2 posted on 05/06/2015 6:45:41 PM PDT by dp0622
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To: BenLurkin

Could it please fall on Baltimore!


3 posted on 05/06/2015 6:45:59 PM PDT by Red_Devil 232 ((VietVet - USMC All Ready On The Right? All Ready On The Left? All Ready On The Firing Line!))
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To: BenLurkin

well I hope it doesnt fall on a RED state.....


4 posted on 05/06/2015 6:46:14 PM PDT by rrrod (at home in Medellin Colombia)
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To: Red_Devil 232

Could it please fall on Baltimore!

I vote for the Black House.


5 posted on 05/06/2015 6:47:10 PM PDT by Da Coyote
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To: Red_Devil 232

If it’s white, they’ll call it racist.


6 posted on 05/06/2015 6:47:35 PM PDT by max americana (fired liberals in our company last election, and I laughed while they cried (true story))
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To: dp0622

I don’t know, but if a piece falls in my yard I wonder how much I can get for it on eBay.


7 posted on 05/06/2015 6:48:30 PM PDT by The Ghost of FReepers Past (Woe unto them that call evil good, and good evil; that put darkness for light..... Isaiah 5:20)
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To: BenLurkin

https://www.youtube.com/watch?v=qLoNQNK376E


8 posted on 05/06/2015 6:50:22 PM PDT by mountn man (The Pleasure You Get From Life Is Equal To The Attitude You Put Into It)
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To: BenLurkin

It will fall on Tehran and Obummer will promptly launch another Mideast Apology Tour.


9 posted on 05/06/2015 6:51:23 PM PDT by corbe (mystified)
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To: The Ghost of FReepers Past

lol. probably a bunch :) With my luck, i’ll be found under it some time tomorrow evening...


10 posted on 05/06/2015 6:55:27 PM PDT by dp0622
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To: dp0622

LOL! That might hurt.


11 posted on 05/06/2015 6:59:15 PM PDT by The Ghost of FReepers Past (Woe unto them that call evil good, and good evil; that put darkness for light..... Isaiah 5:20)
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To: dp0622

Air friction.


12 posted on 05/06/2015 7:01:48 PM PDT by TaMoDee (Go Pack Go! The Pack will be back in 2015!)
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To: TaMoDee

Thanks guys. Fascinating.


13 posted on 05/06/2015 7:04:12 PM PDT by dp0622
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To: dp0622

you ever get rug burns ? same idea


14 posted on 05/06/2015 7:07:08 PM PDT by al baby (Hi Mom)
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To: BenLurkin

Today is Wednesday the 6th.

Tomorrow is Thursday the 7th.

Article says, “Current forecasts predict that the Progress should fall to Earth in an uncontrolled, destructive nose-dive on Thursday (May 8) between 3:11 a.m. and 5:26 a.m. EDT (0711-0826 GMT).”

Is it me, or what ???


15 posted on 05/06/2015 7:14:02 PM PDT by UCANSEE2 (Lost my tagline on Flight MH370. Sorry for the inconvenience.)
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To: BenLurkin

to Earth


16 posted on 05/06/2015 7:14:05 PM PDT by bigbob (The best way to get a bad law repealed is to enforce it strictly. Abraham Lincoln)
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To: al baby
Like i said, fascinating. i told another Freeper i would have thought the answer would be fifty pages long. Amazing. I guess with the planet killer asteroids, there is just too much too burn up completely??
17 posted on 05/06/2015 7:17:34 PM PDT by dp0622
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To: BenLurkin

Sadly predictions are that Hubble also will come tumbling down a lot sooner that most thought.


18 posted on 05/06/2015 7:26:46 PM PDT by corbe (mystified)
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To: BenLurkin

I heard it was headed toward Chappaqua ... but I don’t know .....


19 posted on 05/06/2015 7:29:45 PM PDT by knarf (Especially the one from the Philipines I share bed with ....)
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To: BenLurkin
Or you could just watch it's orbital track in real time on the N2YO web site: http://www.n2yo.com/?s=40619. It's just about over Midway right now.
20 posted on 05/06/2015 7:30:57 PM PDT by Flatus I. Maximus (Obstruct. Oppose. Overthrow. Obama.)
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