Spacecraft

A hidden milestone lurks in the U.S.’s Artemis-focused lunar ambitions—the nation’s first-ever successful robotic moon rover

An elegant mix of math and gravity powers the Artemis II “free return” trajectory from Earth to the moon and back

The fifth day in space for Artemis II saw space suit tests, an Easter egg hunt and final preparations for an imminent close encounter with the moon

A daring 10-day voyage took four astronauts on a loop around the moon and set the stage for future forays to the lunar surface

Elon Musk’s space Internet company said this satellite, which appears to have blown to pieces, did not appear to pose a risk to the ISS or the upcoming NASA moon mission

The U.S. space agency’s Skyfall project calls for sending robotic helicopters to Mars on a nuclear-powered spacecraft before the end of Donald Trump’s presidency

NASA’s Swift space telescope is doomed to burn up in Earth’s atmosphere later this year. A daring mission to boost it to safety could have big implications for science

A major defense against everything space throws at us, Earth’s magnetic field may even protect the moon from damaging galactic cosmic rays

NASA chief Jared Isaacman announced a $30-billion plan to speed up its lunar landings and establish a U.S. moon base by 2036

Faced with the imminent retirement of the International Space Station, NASA is pushing to speed up work on its potential replacements

The U.S. space agency will aim to send a nuclear-powered spacecraft to Mars—a first—in a bid to show that nuclear propulsion can be used to send missions into deep space

Once unfathomable, the milestone of a single company having 10,000 satellites operating overhead signals that the era of mega constellations is here to stay