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JoeRedskin 05-12-2009, 11:30 AM A parting shot from outer space - Cosmic Log - msnbc.com (http://cosmiclog.msnbc.msn.com/archive/2009/05/11/1928665.aspx)
The Hubble Telescope is getting an upgrade, and the camera that gave us these great images is being replaced:
» Eagle Nebula [~2000] - Famous Photo - World’s famous photos (http://www.worldsfamousphotos.com/eagle-nebula-2000.html)
Image Display (http://www.space.com/php/multimedia/imagedisplay/img_display.php?pic=v_ultra-deep_field_02.jpg&cap=Astronomers+at+the+Space+Telescope+Science+Ins titute+today+unveiled+the+deepest+portrait+of+the+ visible+universe+ever+achieved+by+humankind.+Calle d+the+Hubble+Ultra+Deep+Field+%28HUDF%29%2C+the+mi llion-second-long+exposure+reveals+the+first+galaxies+to+emerge +from+the+so-called++dark+ages%2C++the+time+shortly+after+the+b ig+bang+when+the+first+stars+reheated+the+cold%2C+ dark+universe.+Credit%3A+NASA%2C+ESA%2C+S.+Beckwit h+%28STScI%29+and+the+HUDF+Team)
The second image is, to me, mind blowing. It shows a multitude of galaxies photographed by the hubble (the spots in the image are not stars, but entire galaxies). The size of the are photographed is the equivalent of a the area of a dime held 75 feet away from you.
SmootSmack 05-12-2009, 11:48 AM That picture of the Eagle Nebula is one of the most amazing photos ever
GhettoDogAllStars 05-12-2009, 12:24 PM What really blows my mind is to consider time, when viewing those images. If the universe is 13 billion years old, and we're able to receive light that is 12.9 billion years old, we're actually seeing what happened at the beginning of the universe (relatively). Equally mind blowing is the fact that the light we're receiving in no way reflects what is presently happening at the part of space we're receiving the light from.
GMScud 05-12-2009, 12:26 PM Puts into perspective how small we are. Unreal.
Schneed10 05-12-2009, 01:11 PM What really blows my mind is to consider time, when viewing those images. If the universe is 13 billion years old, and we're able to receive light that is 12.9 billion years old, we're actually seeing what happened at the beginning of the universe (relatively). Equally mind blowing is the fact that the light we're receiving in no way reflects what is presently happening at the part of space we're receiving the light from.
Amen. Space-time has got to be the most fascinating concept to think about.
Like how if something is approaching a black hole, once it reaches the event horizon, it would appear to be frozen in time at the event horizon, even though it would have been sucked into the hole in an instant.
The event horizon is the last point at which light can escape the gravitational pull of a black hole. Once you pass that point, even light gets pulled in.
At the event horizon, light moves so slowly away, that the light traveling away from an object there takes forever to get past an outside observer. Giving the appearance of being frozen in time.
I love it.
GhettoDogAllStars 05-12-2009, 04:51 PM Another interesting one to consider is what the universe would look like if you were somehow able to travel at the speed of light.
Light traveling in the same direction as you would always be with you. Light traveling in the same direction as you, but behind you, would never reach you. Light traveling on an intersecting path would be received, but it'd be gone in an instant.
hooskins 05-12-2009, 07:20 PM Another interesting one to consider is what the universe would look like if you were somehow able to travel at the speed of light.
Light traveling in the same direction as you would always be with you. Light traveling in the same direction as you, but behind you, would never reach you. Light traveling on an intersecting path would be received, but it'd be gone in an instant.
I am pretty sure something like the ending scene of Space Odyssey 2001 would happen.
steveo395 05-12-2009, 07:52 PM Another interesting one to consider is what the universe would look like if you were somehow able to travel at the speed of light.
Light traveling in the same direction as you would always be with you. Light traveling in the same direction as you, but behind you, would never reach you. Light traveling on an intersecting path would be received, but it'd be gone in an instant.
The speed of light is always constant no matter what speed you are going. As your speed approaches the speed of light, time slows down. Since speed is distance/time, the greater distance light will have to travel will balance out with the slowed down time, so the speed of light will always stay the same. This means light that is behind you will still reach you.
Daseal 05-12-2009, 08:44 PM Know the worst thing about those first two things you posted? They aren't as pretty as they appear. They add in fake color so you can see the clouds/etc easier. A lot of those images are enhanced.
SmootSmack 05-12-2009, 10:35 PM Know the worst thing about those first two things you posted? They aren't as pretty as they appear. They add in fake color so you can see the clouds/etc easier. A lot of those images are enhanced.
Yeah people complain about that, but really it's not changing the content of the picture. Yeah the color makes things easier to see and it does make it "prettier" but still the meaning of the pictures is, to me at least, what's more amazing. Taking a picture of something that took place 12 billion years ago. That's sick
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