In an unprecedented discovery, astronomers have detected a rare exoplanet located at the very edge of the Milky Way galaxy, using a method grounded in Albert Einstein’s theory of general relativity.

A "domino effect" may occur in star systems whereby newly formed planets close to a star help shepherd dust and gas to create more planets farther out in the system. Astronomers using a mountain ...

While no one yet knows what’s needed to build a habitable planet, it’s clear that the interplay between the sun and Earth is crucial for making our planet livable – a balance between a sun that ...