Last year, an interstellar traveler entered our solar system. Some speculated that it was an alien spacecraft, but it turned ...

A "solar fireworks show" lit up the solar system just in time for the United States' 250th birthday. The sun emitted a strong solar flare on Saturday, which peaked at around 4:41 p.m. ET, NASA said.

Earth receives about 7 percent less light during aphelion than during its closest approach to our star, yet the average ...

An image shot on a handheld Nikon during the recent Artemis II lunar mission has revealed new insights into the evolution of ...

A pair of new studies are looking to define this boundary as NASA’s New Horizons spacecraft hurtles towards it. They have ...

NASA’s James Webb Space Telescope found methane, aerosols, and a tidal heat signature on WD 1856 b — a Jupiter-sized world ...

Interstellar comet 3I/ATLAS may be older than our solar system, offering a rare glimpse into the early galaxy.

A giant planet circling a dead star should not be there. That was the puzzle hanging over WD 1856 b ever since astronomers spotted it in 2020.

A Jupiter-size exoplanet orbiting a dead star baffled astronomers. But the planet named WD 1856 b could preview the fate of ...

All signs were already indicating that interstellar comet 3I/ATLAS was unlike anything we'd ever seen. When it zoomed through ...

Future Artemis astronauts may be able to explore rocks blasted from deep inside the Moon by an ancient giant impact.

As part of plans to establish a lunar base, the space agency may send to the moon a spare test version of the rover — as well ...