In Earth's upper atmosphere, a fast-moving band of air called the jet stream blows with winds of more than 275 miles (442 km) ...

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

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 ...

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 ...

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

President Donald Trump made a bold promise to America minutes after taking the Oath of Office: pledging that an American flag ...

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

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 ...

Captain Planet is back in a new comic from Space Ghost writer David Pepose, complete with a new design from artist Eman Casallos ...