The world of Sailor Moon does not just relate to our own solar system, but the many unknown planets from the original story ...

The findings provide strong evidence that four giant exoplanets 130 light-years from Earth formed much like Jupiter and ...

The two exoplanets, or planets outside of our solar system, orbit a star called TOI-1453, which is slightly cooler and ...

Each of the planets, labeled b, c, d, and e, has a mass between 20% and 30% of Earth's, making them among the smallest yet ...

Scientists are using an array of instruments to detect other planets, some of which may harbor life—and others that most ...

A new classification scheme may help us better understand planet formation — including the history of our own family of worlds.

"We have been waiting for 10 years to confirm that our finely tuned operations of the telescope would also allow us to access ...

The stars as seen from Earth would have looked dimmer 14 million years ago, as the solar system was in the middle of passing ...

Astronomers have identified a quartet of small rocky planets orbiting Barnard’s star – one of our closest stellar neighbors – ...

Our solar system, in contrast ... orbit its star divided by the number of days it takes the next-closest planet to the star to orbit — as a measure of how close the worlds are to each other.

Astronomers have captured direct images of exoplanets in a star system 130 light years away, providing clues on gas giant ...

Scientists estimate there are ~1 septillion (1 followed by 24 zeros) planets in the observable universe. This figure is based ...