Astronomers discover galaxies near cosmic dawn by AURaptor

REAL WORLD EVENT DISCUSSIONS

Astronomers discover galaxies near cosmic dawn

POSTED BY: AURAPTOR
UPDATED: Thursday, December 13, 2012 00:40
SHORT URL:
VIEWED: 503
PAGE 1 of 1

Wednesday, December 12, 2012 1:41 PM

America loves a winner!

One of the galaxies, the astronomers say, might be the all-time record holder—the galaxy as observed existed when the universe was merely 380 million years old. All of the newly discovered galaxies formed more than 13 billion years ago, when the universe was just about 4 percent of its present age, a period astronomers call the "cosmic dawn," when the first galaxies were born. The universe is now 13.7 billion years old. The new observations span a period between 350 million and 600 million years after the Big Bang and represent the first reliable census of galaxies at such an early time in cosmic history, the team says. The astronomers found that the number of galaxies steadily increased as time went on, supporting the idea that the first galaxies didn't form in a sudden burst but gradually assembled their stars. Because it takes light billions of years to travel such vast distances, astronomical images show how the universe looked during the period, billions of years ago, when that light first embarked on its journey. The farther away astronomers peer into space, the further back in time they are looking. In the new study, which was recently accepted for publication in the Astrophysical Journal Letters, the team has explored the deepest reaches of the cosmos—and therefore the most distant past—that has ever been studied with Hubble.

Read more at: http://phys.org/news/2012-12-oldest-galaxy-universe-older.html#jCp

Cosmic time line -

"False words are not only evil in themselves, but they infect the soul with evil." - Socrates

" I do not love the bright sword for its sharpness, nor the arrow for its swiftness, nor the warrior for his glory. I love only that which they defend. "

NOTIFY: N | REPLY | REPLY WITH QUOTE | TOP | HOME

Wednesday, December 12, 2012 9:16 PM

JONGSSTRAW

ok, that means that our whole solar system.....

that means that one tiny atom in my fingernail.....

NOTIFY: N | REPLY | REPLY WITH QUOTE | TOP | HOME

Thursday, December 13, 2012 12:40 AM

AURAPTOR

America loves a winner!

See ? It all goes back to smoking pot with your college professor.

"False words are not only evil in themselves, but they infect the soul with evil." - Socrates

" I do not love the bright sword for its sharpness, nor the arrow for its swiftness, nor the warrior for his glory. I love only that which they defend. "

NOTIFY: N | REPLY | REPLY WITH QUOTE | TOP | HOME

YOUR OPTIONS

SHARE THREAD

NEW POSTS TODAY

USER	POST DATE

USER

POST DATE