NASA Spitzer Space Telescope – Page 2

Magnified image of the faintest galaxy from the early universe

5 December 2015 Astronomy Now

Astronomers harnessing the combined power of NASA’s Hubble and Spitzer space telescopes have found the faintest object ever seen in the early universe. It existed about 400 million years after the big bang, 13.8 billion years ago. The new object is comparable in size to the Large Magellanic Cloud (LMC), a diminutive satellite galaxy of our Milky Way.

The birth of monsters: VISTA pinpoints earliest giant galaxies

18 November 2015 Astronomy Now

ESO’s VISTA survey telescope has spied a horde of previously hidden massive galaxies that existed when the universe was in its infancy. By discovering and studying more of these galaxies than ever before, astronomers have, for the first time, found out exactly when such monster galaxies first appeared.