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Author Topic: Astronomers Get First Look at Protoplanetary "Rainfall"  (Read 1665 times)
Pyperlie
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« Topic Start: September 04, 2007, 02:37:26 pm »


Astronomers Get First Look at Protoplanetary "Rainfall"

Quote
Think your town is rainy? Try living on a planet still in the process of formation, where five whole oceans of water might come raining out of space at supersonic speed.

Astronomers at the University of Rochester said Wednesday that they've observed this short-lived process of pre-planetary rainfall for what seems to be the first time in astronomical history (or, to be fair, at least the first time by Earth-based astronomers).
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« Reply #1: September 04, 2007, 05:48:14 pm »


And it is not quite like it was expected to be. Nifty.
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« Reply #2: September 06, 2007, 12:12:39 pm »


And it is not quite like it was expected to be. Nifty.

That'd be something special to see in real-time.   Smiley
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« Reply #3: September 06, 2007, 04:23:19 pm »

That'd be something special to see in real-time.   Smiley

I think it takes place relatively slowly -- from a human POV, at least.
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« Reply #4: September 08, 2007, 02:49:57 am »


I think it takes place relatively slowly -- from a human POV, at least.

Well, the article said:

Quote
"Icy material from the envelope is in free-fall, reaching supersonic speeds and crashing into the protoplanetary disk," said Rochester physics professor Dan Watson, the lead author on the paper describing the observations, in a press release.

I mean, supersonic speeds sounds pretty fast to me, even on a large scale, but I could be wrong.

Although, I didn't figure it would be extremely fast...I was picturing something more like a light afternoon shower -- with the Milky Way as a backdrop.   Like diamonds falling through black velvet. Cheesy
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~~~Pyperlie<^>

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"Is no one inspired by our present picture of the universe? Our poets do not write about it; our artists do not try to portray this remarkable thing. The value of science remains unsung by singers: you are reduced to hearing not a song or poem, but an evening lecture about it. This is not yet a scientific age."
              -----Richard Feynman

I have loved the stars too fondly to be fearful of the night.
               ----Sarah Williams
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« Reply #5: September 08, 2007, 08:24:22 am »

I mean, supersonic speeds sounds pretty fast to me, even on a large scale, but I could be wrong.

I think we are talking about two different things. Your are apparently talking about watching the "rain" itself and I first though you were talking about watching an entire planet from from the "rain."
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« Reply #6: September 08, 2007, 09:07:49 am »

I think we are talking about two different things. Your are apparently talking about watching the "rain" itself and I first though you were talking about watching an entire planet from from the "rain."

See bolded section of quote--should that be "form from"?
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« Reply #7: September 08, 2007, 05:01:50 pm »

See bolded section of quote--should that be "form from"?

Yes. Smiley  Thanks for catching it.
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