Scientists measured mass and distance of free floating planet drifting through space without star for first time.

Astronomers found a young galaxy cluster with unexpectedly hot gas, suggesting cosmic structures formed faster than once ...

Distance records are an excellent proxy for the state of the art in astronomy. Finding extremely faraway galaxies is hard. In ...

The odds of discovering another Earth are looking slimmer than once believed. A growing body of evidence suggests that truly ...

According to new research, there could be as many as six billion Earth-like planets orbiting stars in our galaxy. By definition, Earth-like planets must be roughly the size of our planet and also be ...

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

Billions of light years from Earth, a baby galaxy that is surprisingly similar to our own is lurking, surprisingly calm and unassuming, scientists said in research published Wednesday. The scientists ...

A new map of the Milky Way created by the National Astronomical Observatory of Japan shows Earth is spiraling faster and is 2,000 light years closer to the supermassive black hole at the center of our ...

We are located only 27,000 light years from the galactic center and go around the center once in some 225 million years – quite amazing stuff! In the known universe since the Big Bang event (13.5 ...

Earth-like planets may in fact be common in the galaxy, increasing the likelihood of extraterrestrial life. By observing the remains of smashed up asteroids around dead stars, astronomers were able to ...