On Dec. 14, 1962, NASA's Mariner 2 spacecraft flew by Venus. [‘On This Day in Space’ Video Series on Space.com] The Mariner 2 ...

Watch how the Space Launch System rocket RS-25 undergoes a core stage engine test-fire. Credit: NASA's Stennis Space Center ...

NASA has lost contact with its MAVEN spacecraft that has been orbiting Mars for more than a decade. Here's what we know.

NASA Associate Administrator for the Science Mission Directorate, Dr. Thomas Zurbuchen, explains. Credit: Space.com | ...

NASA astronaut Jonny Kim flew home with two Roscosmos cosmonauts from the International Space Station packed tight in their ...

A NASA spacecraft is making a close approach to the sun, repeating its record-breaking distance of 3.8 million miles from the ...

NASA’s CGS releases the MAGE model to improve space weather prediction, providing simulations of solar storms, auroras, and ...

NASA has completed assembly of the Nancy Grace Roman Space Telescope, preparing for final testing and launch by May 2027 to ...

The head of NASA’s astrophysics division offered an upbeat assessment of upcoming missions, a stark contrast to the agency’s ...

Russian Soyuz crews are now spending eight months aboard the space station instead of six to stretch supplies and lower costs ...

Every week, Space.com delivers the latest discoveries, launches, and cosmic curiosities from across the universe. From ...

NASA's Goddard Space Flight Center in Maryland is facing controversy over potential building closures. Here's what's been ...