On a clear night, you might see thousands of stars in the sky. Most of these stars are dozens or hundreds of light years away from us. A light year is the distance a beam of light travels in a year: ...

Due to the lapse in federal government funding, NASA is not updating this website. September 2025 marks ten years since the first direct detection of gravitational waves as predicted by Albert ...

This exoplanetary encyclopedia — continuously updated, with more than 6,000 entries — combines interactive 3D models and detailed data on all confirmed exoplanets. When you select a planet’s name, see ...

NASA's Mars Reconnaissance Orbiter blasted off from Cape Canaveral in 2005, on a search for evidence that water persisted on the surface of Mars for long periods of time. While other Mars missions ...

The (Proto) Planet: WISPIT 2b The Discovery: Researchers have discovered a young protoplanet called WISPIT 2b embedded in a ring-shaped gap in a disk encircling a young star. While theorists have ...

Due to the lapse in federal government funding, NASA is not updating this website. A NASA-sponsored team at the University of Iowa (UI) is restoring and advancing the nation’s capability to make ...