April 21 - 28 is International Dark Sky Week, a global celebration of the night sky during which like-minded organizations ...

A reddish star is about to pass through a "beehive" of stars. That "star" is actually one of Earth's planetary neighbors.

Pulling the plastic bins down the rough pavement of my driveway, I stare up at a smattering of stars and planets. I can’t see that many; the band of the Milky Way that I used to see nightly when I ...

Some people probably believe that the twinkling effect is produced by the stars themselves, but that is not the case at all.

A dazzling snapshot from ESO’s Paranal Observatory captures a rare sky parade — the Moon, a comet, and nearly every visible planet strung across the heavens. This celestial lineup is an optical ...

For celestial enthusiasts, the past several days have been a celebration of the night. This week is International Dark Sky Week. Founded in 2003 by Jennifer Barlow, then a 15-year-old high school ...

In February, stargazers enjoyed a rare occurrence: All seven of Earth's planetary siblings dotted the night sky at once. And ...

This rare alignment will be visible for about an hour at around 5.30am on Friday morning, with sunrise taking place at around ...

Here in Michigan, explorers can visit dark sky parks across the state on a clear, open night to glimpse celestial happenings ...

The planet is "crumbling to pieces," shedding the equivalent of Mount Everest’s mass every 30.5-hour orbit and will be ...

An international team including astronomers from the Center for Astrophysics | Harvard & Smithsonian (CfA) has announced the discovery of a planet about twice the size of Earth orbiting its star ...