Nichole Ayers, a NASA astronaut, spotted a rare sprite. The red flash occurred above thunderstorms. It happened over Mexico ...

A rare rock from Mars known as Meteorite NWA 16788 will be up for auction at Sotheby's on July 16. The meteorite may sell for ...

The European Space Agency said Wednesday that scientists have discovered what might be only the third known interstellar ...

NASA astronaut Nichole Ayers, who is aboard the International Space Station as pilot of SpaceX Dragon’s Crew-10, captured the ...

More than $10 billion in funds are included in Trump’s tax and spending bill for NASA programs previously targeted by the ...

To get a glimpse of the “Swift Planet,” EarthSky suggests waiting for the sun to set before looking west for the planet ...

China has conducted two spacewalks from its Tiangong space station in as many months and is advancing on its lunar ...

Researchers are developing bioplastic bubbles from algae that could grow, repair, and protect habitats on Mars without ...

NASA astronaut Nichole Ayers has shared an incredible image of a sprite, a rare weather phenomenon that's triggered high ...

Right now, Earth is about 3.1 million miles farther from the sun than it is in early January when it reaches perihelion, its ...

NASA has discovered an interstellar comet that's wandered into our backyard. The space agency spotted the object with the ...

Microbes have been discovered alive inside 2-billion-year-old rock, offering a rare window into Earth’s deep past. Found in ...