In this series, we cover provocative questions in astronomy. This week: the mysterious extragalactic signals known as Fast ...

How fast can solar systems orbit our Milky Way Galaxy? This is what a recent study published in The Astronomical Journal hopes to address as an internation | Space ...

A blast of radio waves from the outskirts of an ancient galaxy challenges theories about what creates such bursts.

Watch this video to find out more about the Earth, planets in our Solar System and other planets far off in outer space. From up here ... billions of stars in our galaxy, which is called the ...

Uncovering the extraterrestrial world in unprecedented detail, the space agency regularly releases images never seen before. The cosmic wonders include celestial bodies, planets, nebula ...

A U.S. scientist searching for a civilization across 7 Earth clones circling the red dwarf star TRAPPIST-1 says its own alien astronomers could also be scanning Earth.

At least 50 billion planets in our own Milky Way galaxy are likely to be free-floaters ... chaotic star cluster and our smooth path through space was not always so. “ Collisions among ...

This process helps cool the planet. This tangled planetary ... important step in understanding the evolution of galaxy clusters. The outer space world is home to endless mysteries and secrets ...

Staring at the sun—a close (but safe) look at our home star Staring at the sun—a close (but safe) look at our home star Need a new idea to keep kids entertained? Try stargazing. Need a new ...

Exoplanets have captured the imagination of public and scientists alike and, as the search continues for more, researchers have turned their attention to the evolution of metallicity in the Milky Way.