Views: 297 |
Comments: 2 Last by Kelly Oakes on Feb 15, 2011, 5:10pm
Galaxy clusters are some of the largest structures in the universe. Astronomers have found these clusters, which are large groups of galaxies bound together by gravity, as far back as only 4 billion years after the Big Bang (less than a third of the age of the universe). They know they contain stars that formed even earlier than that. But nobody had caught a cluster while it was still forming — until now.
Astronomers have found a “protocluster” that was around only 1 billion years after the Big Bang (that’s a redshift of 5.3 for anyone that’s counting). It sits in a region that is 40 million light years across and is rich in young stars.
The protocluster was found in data from the
Cosmological Evolution Survey, COSMOS. COSMOS uses the
Hubble,
Spitzer and
Chandra space telescopes with the ground based
Keck Observatory and Japan’s
Subaru Telescope to get an good look at the universe. COSMOS looks at a tiny region of sp . . .
More
Before arriving in London, each student receives a short description of the room with the possibility to share a room with a number of other independent students. Twin rooms in flat shares are idea. . .Read More
The one thing you forgot to mention, the most important thing as far as I'm concerned, is the possibility that dark matter does not exist at all. It could be nothing but a by-product of our means o. . .Read More
agreed, the amount of hours people put into their theories is crazy, but all worth it in the end. . . .Read More
From Poincare and caos, for modest changes in the initial conditions, the motion of the system becomes chaotic and completely unpredictable. This is impotrtant for viewing two galaxies mix. Three b. . .Read More
Poincare find that trhee body don not have mathematical representation. The mix of two galaxies must be a big caso .Or not? . . .Read More