See the SpaceX Dragon spacecraft and the Milky Way galaxy in this time-lapse view from the International Space Station. Credit: NASA | edited by Space.com ...

Longtime NASA astronaut Don Pettit is set to return from his fourth trip to space on Saturday night. Here are some of his ...

Astronomers think there could be as many as 100 million black holes in our galaxy, most with a similar mass to our Sun, but they are not that easy to find. With no light able to escape them, black ...

The Lyrids are the oldest, continuously recorded meteor shower, with observations going back more than 2,700 years.

Astronomers have long struggled with a troubling puzzle: a significant portion of normal matter in the universe appeared to ...