April 15, 2011
Stars Born 200 Million Years After Big Bang
The article talks about an exciting discovery that astronomers have recently made using Hubble and Spitzer space telescopes. They recently found a very young galaxy with stars that appear to have formed just 200 million years after the big bang. The galaxy while being so young in the Universe was observed with great clarity due to a magnifying effect of the cluster of galaxies in front of it.
I found this article interesting because it really allows us a clear picture of what the universe may have been like eons ago. It also brings many theories into question of perhaps how soon galaxies were created after the Big Bang. With some hope, it could give us a much improved understanding of how the early Universe has evolved from the "dark ages" to a period of light.
By locating such galaxies that formed so soon after the Big bang, it helps constrain and give meaning to the period of reionization. The article goes on to say that it's likely various other galaxies contributed to this reionization period but are too faint to locate with the same telescoping mechanism instead of gravitational lensing.
The full article can be seen here:
Posted by nikraman at April 15, 2011 11:32 PM