As SpaceX’s Starlink Ramps Up, So Could Light Pollution

The constellation of internet-providing satellites is growing. Now the company and its rivals must avoid creating brighter night…

NASA’s NIAC Program Gives a Sneak Peek at the Future of Space Travel

As the agency develops plans for exploring the moon and Mars, it's seeking cutting-edge research that…

SpaceX’s Inspiration4 Returns After 3 Days in Orbit

The first all-civilian, all-private spaceflight splashed down off the coast of Florida.

How to Watch the SpaceX Inspiration4 Launch

The first all-civilian, all-private mission to orbit prepares to blast off from NASA’s Kennedy Space Center.

SpaceX’s All-Civilian Inspiration4 Crew Readies for Launch

Four civilians—none of them NASA astronauts—are expected to blast into space aboard SpaceX’s Crew Dragon spacecraft…

The Dark Asteroid Ryugu Finally Comes Into the Light

Using cameras aboard the Hayabusa2 spacecraft, Japanese scientists get a rare, close-up glimpse of a space…

Second Time’s the Charm: NASA Perseverance Drills a Mars Rock

After a first attempt brought up an empty tube, the rover finally cored a sample.

The Biden Administration Weighs the Social Cost of Carbon

A new White House policy tries to put a dollar value on the future harm of…

‘Oumuamua Was Neither Comet nor Asteroid…So What Was It?

Last year's brief interstellar visit from a cigar-shaped thing named 'Oumuamua is confounding astronomers in new…