Since the first Search for Extraterrestrial Intelligence (SETI) experiment in 1960, scientists have been scanning the Milky Way for signs of advanced alien civilizations. They have looked for unusual ...

A recent study by EPFL finds that extraterrestrial signals in the Milky Way are likely rare and distant, with few detectable transmissions reaching Earth at any time ...

Astronomers suspect the heart of the Milky Way may be hiding a big secret: a rapidly spinning, highly magnetic, neutron ...

In context: Radio waves from distant galaxies are too faint to provide meaningful data for potential space observations. However, a sufficiently advanced alien civilization could harness energy in ...

If advanced aliens lived on a planet within a few hundred to a thousand light years away from Earth, then vast numbers of their signals must already have crossed Earth without being noticed, a new ...

Forbes contributors publish independent expert analyses and insights. An award-winning reporter writing about stargazing and the night sky. When will the Milky Way collide with the Andromeda Galaxy?

WASHINGTON - Astronomers have produced the largest and most detailed map ever made of the vast web of cold cosmic gas ...