Roughly 400,000 years after the Big Bang, the universe cooled just enough to allow photons to escape from the primordial ...

Astronomers have identified three ultra-massive galaxies -- nearly as massive as the Milky Way -- already in place within the first billion years after the Big Bang. This surprising discovery was made ...

More than two decades after spotting a mysterious, gelatinous, bioluminescent creature swimming in the deep sea, California ...

Across the Ozarks, many people noticed an unusual sight in the sky on Tuesday. A partial rainbow near the sun. The optical ...

There is a region of the sky where astronomers fear to look. Filled with dark clouds of dust, it hides an unseen mass. A mass ...