Spacecraft

A Texas-built lander named Blue Ghost marks another test of NASA’s new lunar delivery initiative

NASA sees two paths for saving its beleaguered plan to retrieve materials from the Red Planet but won’t choose between them until 2026

The Parker Solar Probe will swoop just 6.1 million kilometers above the sun’s surface on Christmas Eve. Scientists are thrilled at what we might learn

See the year’s most striking images from the Hubble and James Webb space telescopes, NASA’s Mars rover and the best sky watching on offer

For two decades now, the iconic twin Voyager spacecraft have been quietly overturning everything we thought we knew about the boundary between our solar system and interstellar space

While contending with lingering hardware issues for its crewed lunar plans, the U.S. space agency projects confidence and urgency in a time of transition

NASA’s presumptive next leader, billionaire private astronaut Jared Isaacman, already has big plans for the space agency

The Chandra X-ray Observatory is facing closure. Shutting it down would be a loss to science as a whole

A special spacecraft will guide the space station through Earth’s atmosphere, but what about other large pieces of space debris?

For the first time, we are sending a spacecraft to explore an alien ocean world—a moon that might host life today

Sooner or later a doomsday asteroid will wipe out most life on Earth—unless, that is, we prevent threatening space rocks from hitting us in the first place

We are in a new and different kind of moon race, one the U.S. is losing. To win, says a former NASA official, we need new strategies