NASA says it is “very unlikely” the agency will be able to recover a Mars spacecraft that has been out of contact for more than a month.

After a health issue, four astronauts are set to leave the International Space Station early, with a pre-dawn Pacific splashdown planned for Thursday, Jan. 15.

NASA has launched a competition to help develop food sources for astronauts on Mars. The winning idea might even help people on Earth.

Among other things, the James Webb Space Telescope is designed to get us closer to finding habitable worlds around faraway stars. From its perch a million miles from Earth, Webb’s huge gold-coated mirror collects more light than any other telescope put into space.

NASA makes unprecedented decision to bring International Space Station crew home early after medical emergency – first time in 25-year station history.

The European Space Agency (ESA) is still in the dark about NASA's participation in its Venus explorat Envision despite the project's tight deadline, ESA representatives said in a recent media briefing.

"Awards like these are a critical component of our incubator program for future missions, which combines government leadership with commercial innovation to make what is impossible today rapidly implementable in the future," said Shawn Domagal-Goldman, director of NASA's Astrophysics Division in the statement.

Scientists are using the cutting-edge satellite technology from the NASA-ISRO Synthetic Aperture Radar (NASIR) to rethink how we understand earthquakes.