Earth is quietly collecting radioactive debris from an ancient stellar explosion as our Solar System drifts through a giant ...

When you think of outer space, you're likely picturing stars, planets and moons. But much of space is filled with clouds of gas, plasma and stardust—known as interstellar clouds.

Astronomers have discovered the first radio signals from a unique category of dying stars, called Type Ibn supernovae, and these signals offer new insights into how massive stars meet their demise.

Earth is covered in water—but scientists still debate how it got here in the first place. This video explores the mysterious ...