If you're going to Mars you'd best take along a jar of anti-aging cream because while you're there you're going to age faster ...

On Earth, knowing the time feels simple. Your phone pings the same second as a GPS satellite and an atomic clock in a lab.

Solar sailing has moved from science fiction concept to working hardware, and now a new generation of entrepreneurs wants to ...

Astronomers using the James Webb Space Telescope have captured dramatic helium streams pouring off the super-puff exoplanet WASP-107b, revealing a world with an enormously inflated, weakly bound ...

A newly analyzed planetary system has turned up a world orbiting at such a skewed angle that it defies the neat textbook ...

A lot has changed since our last rundown of the satellite internet market back in May. SpaceX has kept up an aggressive pace, ...

Revisiting old data from Voyager 2, scientists have worked out how a dense, shocked region of the solar wind could have ...

With major eclipses, brilliant supermoons, and lineups of five or more planets, 2026 offers something awe-inspiring in every season. Here’s what to watch for.

If you feel a thrill every time we discover something new about the cosmos, then November 25th may have been a noteworthy day ...