On Oct. 13, 1773, a French astronomer named Charles Messier discovered the "whirlpool galaxy," also known as Messier 51, or ...

On Oct. 13, 1773, Charles Messier spotted the Whirlpool Galaxy (M51) for the first time. Writing of it a few months later, he ...

See views of The Horsehead Nebula, the Perseus Cluster of galaxies, spiral galaxy IC 342, irregular galaxy NGC 6822 and ...

A waning Moon drifts past Jupiter this week, while early risers will find dazzling views of autumn constellations and ...

Look for the three stars that make up the distinctive formation of Orion's Belt — Alnitak, Alnilam and Mintaka — shining roughly 40 degrees above the southern horizon before sunrise. To estimate 10 ...

Hubble captured a breathtaking view of NGC 6000, a spiral galaxy where blue newborn stars shine beside golden, aging ones.

Amazon Prime Big Deal Day is in full swing, but you only have a few hours left to shop the bargain buys because the sale will ...