Rogue planets — worlds that drift through space alone without a star — largely remain a mystery to scientists. Now, ...

NORFOLK, Va. — A light year is exactly what it sounds like: the distance light travels in one year. If you need to get somewhere quick, you'd want to jump on this train because light travels through ...

Their analysis showed that the planet lies about 3,000 parsecs, or just under 10,000 light-years, from Earth. Its mass is ...

Astronomers have just confirmed one of the strangest kinds of worlds imaginable, a planet drifting through the galaxy with no ...

Even if they were dozens of light-years away, two colliding neutron stars could create a powerful enough explosion to wipe out life on Earth. At least, that’s according to a recent paper published in ...

A radio signal nearly 9 billion light-years away from Earth was captured in a new recording, detected by India's Giant Metrewave Radio Telescope. McGill University said in a release that this marked ...

New, groundbreaking research shows that rotation curves of galaxies stay flat indefinitely, corroborating predictions of modified gravity theory as an alternative to dark matter In a breakthrough ...

This Christmas, astronomers are highlighting a spectacular region of space that looks remarkably like a glowing holiday tree.

Congratulations on noticing an effect called superluminal expansion, a phenomenon we see in a light echo. The echo appears to us to expand at many times the speed of light, seemingly violating the ...