(CNN) — Over the past decade, scientists have detected a puzzling phenomenon: radio pulses coming from within our Milky Way galaxy that would pulse every two hours, like a cosmic heartbeat.

(CNN) — Over the past decade, scientists have detected a puzzling phenomenon: radio pulses coming from within our Milky Way galaxy that would pulse every two hours, like a cosmic heartbeat.

The Milky Way is one of the biggest in the observable universe: Even if you traveled at the speed of light, it would take 100,000 years to go from one end of our home galaxy to the other.

When we observe distant celestial objects, there is a possible catch: Is that star I am observing really as reddish as it ...

Closer to home in our own Milky Way galaxy, Spherex will hunt for water and other ingredients of life in the icy clouds between stars where new solar systems emerge. The cone-shaped Spherex — at ...

A new study of super-fast-moving stars suggests that they were accelerated by a monster black hole that's been lurking unseen in the galaxy next door. This appears to be the closest supermassive black ...

A video from National ... our galaxy Here’s a cool space fact we bet you didn’t know: NASA experts believe there could be ...