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Astronomy Picture of the Day -- The Protoplanetary Disk of HL Tauri from ALMA
NASA ^ | November 10, 2014 | (see photo credit)

Posted on 11/13/2014 2:34:43 PM PST by SunkenCiv

Explanation: Why does this giant disk have gaps? The exciting and probable answer is: planets. A mystery is how planets massive enough to create these gaps formed so quickly, since the HL Tauri star system is only about one million years old. The picture on which the gaps were discovered was taken with the new Atacama Large Millimeter Array (ALMA) of telescopes in Chile. ALMA imaged the protoplanetary disk, which spans about 1,500 light-minutes across, in unprecedented detail, resolving features as small as 40 light minutes. The low energy light used by ALMA was also able to peer through an intervening haze of gas and dust. The HL Tauri system lies about 450 light years from Earth. Studying HL Tauri will likely give insight into how our own Solar System formed and evolved.

November 10, 2014

(Excerpt) Read more at 129.164.179.22 ...


TOPICS: Astronomy; Astronomy Picture of the Day; Science
KEYWORDS: apod; astronomy; hltauri; science
[Credit: ALMA (ESO/NAOJ/NRAO), NSF]

1 posted on 11/13/2014 2:34:43 PM PST by SunkenCiv
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To: brytlea; cripplecreek; decimon; bigheadfred; KoRn; Grammy; steelyourfaith; Mmogamer; dayglored; ...
The Big One

2 posted on 11/13/2014 2:35:20 PM PST by SunkenCiv (https://secure.freerepublic.com/donate/_______________________Celebrate the Polls, Ignore the Trolls)
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To: SunkenCiv

That’s actually pretty spectacular considering the distance and resolution.


3 posted on 11/13/2014 2:38:21 PM PST by cripplecreek (You can't half ass conservatism.)
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To: SunkenCiv

That is really cool. Counting the rings it looks like about 8 planets. Imagine that!


4 posted on 11/13/2014 2:43:59 PM PST by Herosmith ("Hindsight alone is not wisdom, And second-guessing is not a strategy." - GWB)
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To: SunkenCiv

What can’t God do?


5 posted on 11/13/2014 4:49:31 PM PST by Karl Spooner
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To: SunkenCiv

That’s just awesome!!!

Likely similar to what out young Solar System looked like in the beginning.


6 posted on 11/13/2014 4:55:39 PM PST by KoRn (Department of Homeland Security, Certified - "Right Wing Extremist")
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To: KoRn

:’) It’s the tigers turning into butter.


7 posted on 11/13/2014 8:16:29 PM PST by SunkenCiv (https://secure.freerepublic.com/donate/_______________________Celebrate the Polls, Ignore the Trolls)
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To: SunkenCiv

Really cool!


8 posted on 11/13/2014 8:21:11 PM PST by The Cajun (Ted Cruz, Sarah Palin, Mark Levin, Mike Lee, Louie Gohmert....Nuff said.)
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