New Hubble eXtreme Deep Field

coldmeat

Diamond Member
Jul 10, 2007
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http://www.nasa.gov/mission_pages/hubble/science/xdf.html
http://hubblesite.org/newscenter/archive/releases/2012/37/


hs-2012-37-a-web.jpg


Pretty amazing. From what I can gather that's 1/32 millionth of the sky.


Also interesting is the Hubble Ultra Deep Field (2003):
http://en.wikipedia.org/wiki/Hubble_Ultra-Deep_Field
 

manimal

Lifer
Mar 30, 2007
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That constellation near the top that looks like it has two eyes... I doubt they've named it yet. I hereby name it Constellation DrPizza.


Two crossed eyes



Its already been named the Vienna constellation by Joe Mchale


cross%20eyed.jpg
 

ImpulsE69

Lifer
Jan 8, 2010
14,946
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This is the same pic as from 2009 but just enhanced? I don't get what they did because I agree it looks grainier.

Anyway...this pic always blew my away. Looking at it makes me think if we truly are alone in all this....scratches head...then wtf?
 

wirednuts

Diamond Member
Jan 26, 2007
7,121
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Anyway...this pic always blew my away. Looking at it makes me think if we truly are alone in all this....scratches head...then wtf?

i think this kind of stuff proves we arent alone. i think mathematically it would work out to near 0% chance that we are the only ones here. the universe is bigger then all of our imaginations combined times a few thousand trillion. its just insane how big it is.
 

Jeff7

Lifer
Jan 4, 2001
41,596
20
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The XDF is a small fraction of the angular diameter of the full Moon.
Ah. Excellent. That's very specific. :\



Edit: Here we go:
"The image is 2.3 arcminutes by 2 arcminutes in size."

Google says....the full Moon appears a little over 30 arcminutes.

And a helpful link.
 
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fuzzybabybunny

Moderator<br>Digital & Video Cameras
Moderator
Jan 2, 2006
10,455
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This is the same pic as from 2009 but just enhanced? I don't get what they did because I agree it looks grainier.

Anyway...this pic always blew my away. Looking at it makes me think if we truly are alone in all this....scratches head...then wtf?

We're not alone. That line of thinking was propagated by people without access to the knowledge that we have now of the world. Why people still take stock in such outdated wonderings is confusing to me.
 

DrPizza

Administrator Elite Member Goat Whisperer
Mar 5, 2001
49,601
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www.slatebrookfarm.com
i think this kind of stuff proves we arent alone. i think mathematically it would work out to near 0% chance that we are the only ones here. the universe is bigger then all of our imaginations combined times a few thousand trillion. its just insane how big it is.
Actually, it doesn't. Those galaxies looked like that 12 or 13 billion years ago. The majority of stars back then would have been first generation stars. It isn't until after stars go supernova that we have elements such as what's found on Earth to actually make a solid planet. That is, most of those stars would not have planets around them at all, let alone have planets that could support life.

Of course, we do know that stars go boom, and from that material, we end up with new stars that have planets around them. That picture, nonetheless, provides zero proof that this happens.
 

SphinxnihpS

Diamond Member
Feb 17, 2005
8,368
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Actually, it doesn't. Those galaxies looked like that 12 or 13 billion years ago. The majority of stars back then would have been first generation stars. It isn't until after stars go supernova that we have elements such as what's found on Earth to actually make a solid planet. That is, most of those stars would not have planets around them at all, let alone have planets that could support life.

Of course, we do know that stars go boom, and from that material, we end up with new stars that have planets around them. That picture, nonetheless, provides zero proof that this happens.

Actually no. Those are mostly going to be 2nd gen stars. First gen stars were very short-lived, and we may never see one.
 

coldmeat

Diamond Member
Jul 10, 2007
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Wikipedia says the James Webb telescope won't be ready until at least 2018. :(
 
Mar 10, 2005
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Actually no. Those are mostly going to be 2nd gen stars. First gen stars were very short-lived, and we may never see one.

http://en.wikipedia.org/wiki/Chronology_of_the_universe#Structure_formation

the universe is 13.7 billion years old
these stars are seen as they were 13.2 billion years ago
the first stars formed 150 million to 1 billion years after the big bizang

http://www.redorbit.com/news/space/1112701146/universe-hubble-extreme-deep-field-092612/
The youngest galaxy found in the XDF existed just 450 million years after the Big Bang.
 
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mizzou

Diamond Member
Jan 2, 2008
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As I sit here in my plain ranch home, I realize my plain home is part of a beautiful universe that is beyond comprehension.
 

mizzou

Diamond Member
Jan 2, 2008
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Soooo...if you magnify to a certain extend...you should see what happened before the big bang?


The way I've always pictured FTL travel is, like you are watching a football game and you see your team about the score a touch down. On some TV channels, the play is already in progress, when you are seeing a more delayed broadcast. But if you instantly traveled to the football field, you would probably watch your team already celebrating the touchdown.

So what we see isn't what is actually existing, it's just a ghost or transmission of what happened.

It's also why I don't understand how FTL travel will also enable time travel.