This once-in-a-generation shift is a pivotal power play in a saga that will unfold in the years and decades to come.

Jan. 21. A planet parade is when several of our solar system's planets are visible in the night sky at the same time. There ...

High radiation during a time of frenzied star formation in the Milky Way left one stellar population with few chances to form planets, a study reports.

Astronomers have discovered extremely powerful winds pummeling the equator of WASP-127b, a giant exoplanet. Reaching speeds ...

Six planets are set to align Tuesday evening, four of which will be visible to the naked eye, according to astronomers. NASA ...

Because planets always appear in a line, the alignment isn't anything out of the norm. What's less common is seeing so many bright planets at once.

Six planets will be in alignment this weekend, with four of them shining bright in one sweeping view. What to know about the ...

Trump is pulling America out of the Paris Agreement, leaving the U.S. as the only major emitter not part of the treaty. It's ...

In his prepared remarks, Trump, a longtime backer of U.S.-led space exploration and exploitation, singled out Mars and left ...

Venus and Saturn are currently in conjunction, meaning the planets appear close together in the night sky from Earth. These ...

Yes, Planet Fitness members are in luck on MLK Day this year. Most locations will be open from 5 a.m. to 10 p.m., similar to ...