In 1930, astronomers divided the sky into 88 constellations, giving each a Latin name. Before this time, there was no one universally accepted sky map, and quite a lot of confusion.

June presents a perfect opportunity to spot the three biggest constellations in the sky — Hydra, Virgo and Ursa Major — but you may have to look beyond standard star charts to find the Big Three.

The three largest constellations are gracing the evening skies. Hydra, the sea serpent; Virgo, the maiden; and Ursa Major, the big bear are visible in the night sky right now. Hydra lies mainly in ...

Some, called circumpolar constellations, are so close to a celestial pole that they never dip below the horizon and instead just circle that fixed point on the sky every night. They’re always ...

This sky map shows the locations of the Canis Major (Big Dog), Canis Minor (Little Dog) and Orion constellations in the southeastern sky at 9 p.m. ET as seen from the U.S. East Coast.

How the constellations appear today, on April 2nd, 2015 (via Planetarium) The Big Dipper and Orion's Belt are two easily recognizable fixtures in our night sky (though contrary to popular belief ...

Today, astronomers recognize 88 official constellations. These are not actually recognizable patterns of stars, but instead set areas of sky.

In celebration of the 10th mission year of NASA’s Fermi Gamma-ray Space Telescope, scientists have developed a new set of constellations that correspond with gamma-ray emissions.

Just how much those constellations will change depends on how far their stars are from Earth. Stars drift around at velocities measured in tens of kilometers per second---"extremely fast compared ...