SpaceX's busy month of September in California will continue in the days ahead with its second non-Starlink launch of the ...

A new NASA mission will capture images of Earth's invisible "halo," the faint light given off by our planet's outermost atmospheric layer, the exosphere, as it morphs and changes in response to the ...

About a century before Glacier Bay became a national park, conservationist John Muir visited the landform now called Russell ...

See the epic view of the moon and Earth captured by the Orion spacecraft ahead of its outbound powered flyby. Credit: NASA / time-lapsed by Space.com's Steve Spaleta Music: Kepler's Hope by Year of th ...

MLB’s plan to take over local TV rights is a huge deal. Here’s why. There Are Mystery Rings Around 500,000 Barrels on the Seafloor. They Shouldn’t Be There. Kennedy advisers vote to remove blanket ...

Much as we may treasure and proclaim our independence, we actually live in a protective bubble called the heliosphere.

"Gaia provides the first accurate view of what our section of the Milky Way would look like from above," Lewis McCallum, an ...