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Stardust mission returned 'cosmic treasure,' scientist says
ap on Bakersfield Californian ^ | 1/19/06 | Pam Easton - ap

Posted on 01/19/2006 1:45:23 PM PST by NormsRevenge

SPACE CENTER, Houston (AP) - A honeycomb cluster of cells on NASA's Stardust spacecraft captured thousands of samples of interstellar and comet dust that scientists said Thursday could give them the first definitive evidence about how the solar system formed.

"Its cargo was an ancient, cosmic treasure from the very edge of the solar system - a treasure that formed when the solar system formed 4.5 billion years ago," said Donald Brownlee, a University of Washington scientist who worked on the Stardust mission managed by the Jet Propulsion Laboratory in Pasadena, Calif.

Some of the samples collected during the seven-year, $212 million mission will be sent to 150 scientists worldwide so they can study the cosmic grains.

The spacecraft swooped past the comet Wild 2 in 2004 and used a tennis racket-sized collector mitt, which contained the honeycomb of cells filled with gel-like material to snatch the dust particles.

The Stardust spacecraft looped around the sun three times to capture the interstellar and comet dust, which hit the gel at a speed six times faster than a bullet fired from a rifle.

The capsule containing the spacecraft's collector returned to Earth on Sunday in Utah and was transported to NASA's Johnson Space Center in Houston, where scientists opened it Tuesday.

"We had a long time to come up with all of the things that could go wrong," said Michael Zolensky, Stardust's curator.

What if the collector didn't open up correctly or the particles slammed with such force into the gel that they blew the material out, leaving scientists with nothing to study, Zolensky and other scientists wondered.

"We were really worried about that and got more and more worried as time went by," Zolensky said. "So when we opened the tray just two days ago in the lab, we were pleased to find that everything went exactly right - just fabulous. We couldn't have done a better job catching these particles."

Most of the particles, which appear black under a microscope, aren't visible to the human eye. But Brownlee said he and other scientists were surprised all of the particles weren't "purely microscopic."

"That's why we were jumping up and down," he said. "We were totally overwhelmed by the ability to actually see this."

Zolensky said scientists who study the dust will determine what minerals are in it and compare the dust particles to meteorites. They also will attempt to determine if the dust contains organic material.

"They are very small rocks, but they are rocks nonetheless. And what do these minerals tell us about how these grains form?" he said. "We think that much of the Earth's water and organics ... perhaps came from comets. So what will these samples tell us about basically where our atoms and molecules came from and then how they were delivered to Earth and in what amount?"

Peter Tsou, the mission's deputy principal investigator from JPL, said the sample return is historic.

"Tiny samples from a distant comet open giant windows of our past," he said.

---

http://www.nasa.gov/stardust


TOPICS: News/Current Events; US: Texas
KEYWORDS: comet; cosmic; mission; nasa; returned; scientist; stardust; treasure; wild2
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1 posted on 01/19/2006 1:45:25 PM PST by NormsRevenge
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To: NormsRevenge
Scientists Confirm Comet Samples, Ecstatic with Return


2 posted on 01/19/2006 1:47:46 PM PST by NormsRevenge (Semper Fi ... Monthly Donor spoken Here. Go to ... https://secure.freerepublic.com/donate/)
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To: NormsRevenge

Oh big deal! I found some dust behind my dresser when I moved it the other days that is AT LEAST as old as what they spent all that money to collect. Ands I'll sell it to them cheap...


3 posted on 01/19/2006 1:56:32 PM PST by 43north (Liberals are obsessed by the vulgarity of their lives & the obscenity of their behavior.)
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To: NormsRevenge

Hmmmm....seems like I've read about this some place before.............

http://www.garnersclassics.com/qstrain.htm


4 posted on 01/19/2006 1:57:35 PM PST by Dixiekraut (Convey)
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To: Physicist; longshadow; PatrickHenry; martin_fierro; RightWingAtheist; KevinDavis

ping


5 posted on 01/19/2006 1:58:23 PM PST by RadioAstronomer (Senior member of Darwin Central)
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To: NormsRevenge

I love the guy in the background with the peace symbols - I'll bet in another picture he starts banging his head like Beavis and Butthead.


6 posted on 01/19/2006 1:58:43 PM PST by steel_resolve
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To: NormsRevenge

Wouldn't it be interesting, of someday, we learn that at the heart of every comet, it's nucleus --is an old Buick with "Non-op" insurance?

It makes you think...

I'm glad we're spending billions going to Pluto and collecting dust (I collect dust too)-- instead of building a wall at the border. A wall of Kryptonite-- seven feet thick. Red or green- makes no difference.


7 posted on 01/19/2006 2:03:00 PM PST by warpcorebreach
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To: VadeRetro; Junior; longshadow; RadioAstronomer; Doctor Stochastic; js1138; Shryke; RightWhale; ...
SciencePing
An elite subset of the Evolution list.
See the list's explanation at my freeper homepage.
Then FReepmail to be added or dropped.

8 posted on 01/19/2006 2:05:46 PM PST by PatrickHenry (Virtual Ignore for trolls, lunatics, dotards, scolds, & incurable ignoramuses.)
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To: NormsRevenge

Good job, guys!!!


9 posted on 01/19/2006 2:07:41 PM PST by MonroeDNA (Look for the union label--on the bat crashing through your windshield!)
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To: NormsRevenge
"Its cargo was an ancient, cosmic treasure from the very edge of the solar system - a treasure that formed when the solar system formed 4.5 billion years ago," said Donald Brownlee, a University of Washington scientist

Just another example proving that scientists should avoid waxing rhapsodic....

10 posted on 01/19/2006 2:08:19 PM PST by r9etb
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To: 43north

A lot of that dust behind your dresser might have come from space. Estimates of how much space dust lands on Earth every day range from 100 to 1,000 tons.


11 posted on 01/19/2006 2:14:14 PM PST by USFRIENDINVICTORIA (")
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To: NormsRevenge

It's an alien life form...hellbent on Earth's destruction! Where's Mulder and Scully?

The truth is out there..........:)


12 posted on 01/19/2006 2:19:24 PM PST by goresalooza (Nurses Rock!)
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To: USFRIENDINVICTORIA
Estimates of how much space dust lands on Earth every day range from 100 to 1,000 tons.

So, I'm not getting fatter? The accumulation is just causing the gravitational pull of the earth to increase?

13 posted on 01/19/2006 2:24:57 PM PST by Dementon (You're unique! Just like everyone else!)
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To: NormsRevenge

Meanwhile, back in low earth orbit,
the crew of the ISS is doing a great job
of cleaning green slime off of the walls
of their spaecraft.


14 posted on 01/19/2006 2:30:28 PM PST by greasepaint
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To: steel_resolve

"I love the guy in the background with the peace symbols - I'll bet in another picture he starts banging his head like Beavis and Butthead."

No, then he would have done the "Dio" fingers (index and pinky).


15 posted on 01/19/2006 2:35:51 PM PST by MeanWestTexan (Many at FR would respond to Christ "Darn right, I'll cast the first stone!")
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To: Dementon

I've always blamed gravity waves for any apparent weight gain -- but come to think of it, accumulated space dust would explain the slow & steady gains better.


16 posted on 01/19/2006 2:37:23 PM PST by USFRIENDINVICTORIA (")
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To: USFRIENDINVICTORIA

It's good to know it's not just me.


17 posted on 01/19/2006 2:40:34 PM PST by Dementon (You're unique! Just like everyone else!)
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To: RadioAstronomer

Thank you very much for the ping! Congrats to any of your friends who may be working on this. We have a prof here at the U of M's Physics and Astronomy department who is going to be working on some of the samples.


18 posted on 01/19/2006 2:44:48 PM PST by RightWingAtheist (Creationism Is Not Conservative!)
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To: steel_resolve

Probably a V for Victory, actually.


19 posted on 01/19/2006 2:50:49 PM PST by Doctor Stochastic (Vegetabilisch = chaotisch ist der Charakter der Modernen. - Friedrich Schlegel)
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To: steel_resolve
I love the guy in the background with the peace symbols - I'll bet in another picture he starts banging his head like Beavis and Butthead.

This guy wasn't flashing a 'peace sign'

And neither was this guy ...

They're both flashing a 'Vee for Victory' sign.

20 posted on 01/19/2006 3:09:02 PM PST by IonImplantGuru (Plus ça change, plus c'est la même chose.)
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