Spacecraft

NASA scientists spent months coaxing the 46-year-old Voyager 1 spacecraft back into healthy communication

Millions of human-made objects travel at high speeds in low-Earth orbit, polluting space and increasing the chance of collision with satellites and other spacecraft

Facing budgetary pressure for its Mars Sample Return program, NASA has turned to private industry for ideas—perhaps with one specific company in mind

How long can humanity’s artifacts endure on the lunar surface? A new installation from artist Jeff Koons is inadvertently putting this question to the test

When astronauts return to the moon later this decade, they’ll bring along science experiments to study moonquakes, lunar water ice and extraterrestrial agriculture

Three years ago astronauts threw out the largest piece of trash ever tossed from the International Space Station. Now some of it has punched a hole through a house in Naples, Fla.

According to Albert Einstein’s general theory of relativity, the universe remembers every gravitational wave—and scientists could soon test these cosmic recollections

Scientists have scarcely begun studying pristine material from asteroid Bennu that was brought back to Earth by the OSIRIS-REx mission, but they have already found several surprises

The Chandra X-ray Observatory faces a premature end under new funding cuts proposed by NASA—and astronomers aren’t happy

NASA’s partnership with private industry to accelerate the U.S.’s return to the moon is delivering lunar payloads—and mixed results

NASA is reaching across more than 15 billion miles to rescue its malfunctioning Voyager 1 probe—but this hallowed interstellar mission can’t live forever

Japan’s SLIM lander has sparked a new era of precision landings, with big implications for lunar science and exploration