Jump to content
  • entries
    643
  • comments
    1,623
  • views
    382,947

HUBBLE FINDS HUNDREDS OF GALAXIES IN EARLY UNIVERS


JamesSavik

353 views

NASA's Hubble Finds Hundreds of Young Galaxies in Early Universe

 

--------------------------------------------------------------------------------

NASA Press Release:

September 21, 2006

PRESS RELEASE NO.: STScI-PR06-12

Source Link

 

distantgalaxies-hst.jpg

 

NASA'S HUBBLE FINDS HUNDREDS OF YOUNG GALAXIES IN EARLY UNIVERSE

 

Astronomers analyzing two of the deepest views of the cosmos made with NASA's Hubble Space Telescope have uncovered a gold mine of galaxies, more than 500 that existed less than a billion years after the Big Bang. These galaxies thrived when the cosmos was less than 7 percent of its present age of 13.7 billion years. This sample represents the most comprehensive compilation of galaxies in the early universe, researchers said.

 

The discovery is scientifically invaluable for understanding the origin of galaxies, considering that just a decade ago early galaxy formation was largely uncharted territory. Astronomers had not seen even one galaxy that existed when the universe was a billion years old, so finding 500 in a Hubble survey is a significant leap forward for cosmologists.

 

The galaxies unveiled by Hubble are smaller than today's giant galaxies and very bluish in color, indicating they are ablaze with star birth. The images appear red because of the galaxies' tremendous distance from Earth. The blue light from their young stars took nearly 13 billion years to arrive at Earth. During the journey, the blue light was shifted to red light due to the expansion of space.

 

"Finding so many of these dwarf galaxies, but so few bright ones, is evidence for galaxies building up from small pieces

0 Comments


Recommended Comments

There are no comments to display.

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
×
×
  • Create New...

Important Information

Our Privacy Policy can be found here: Privacy Policy. We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue..