Spacecraft

The spacecraft will arrive in lunar orbit in mid-November to help prepare for a future moon-orbiting outpost

Planetary scientists are eager to bring Red Planet rocks, soil and even air to Earth, but critics fear the risk of contaminating our world’s biosphere 

The latest data release from the European Space Agency’s Gaia mission is sparking a frenzy of exciting new astrophysics research

Images from Japan’s Himawari-8 spacecraft shed light on the red supergiant star’s remarkable fading

The impact has slightly degraded one of the observatory’s mirror segments, but NASA says the telescope has sustained no significant damage

SpaceX and other companies are still struggling to make their satellites darker in the night sky

In the far future, we could reveal detailed views of distant worlds by turning our home star into a gravitational lens

NASA’s three-and-a-half-year mission to collect seismic data from Mars is running out of juice

The Starliner team is confident the malfunctions won’t prevent the spacecraft from completing its mission

Russia’s invasion of Ukraine ended hopes of launching the ExoMars rover in 2022. Now the mission may never lift off at all

The uncrewed flight includes a payload of food, provisions and a specialized flight-test dummy

THESAN—the largest, most detailed computer model of the universe’s first billion years yet made—is helping set expectations for observations from NASA’s James Webb Space Telescope