A NASA satellite that’s been orbiting as space junk since 1967, Relay 2, emitted an unexpected, powerful radio burst that astronomers initially struggled to explain.

During their two-week stay aboard the orbiting laboratory, the crew of Ax-4 will engage in science, outreach, and commercial activities. Peggy Whitson, former NASA astronaut and director of human ...

Ax-4 will also carry the first astronauts from Poland and Hungary to stay aboard the space station. Launch coverage is led by Axiom Space, with support from NASA and SpaceX; NASA's primary mission ...

From Sunday, June 22 to Wednesday, July 2, two research aircraft will make a series of low-altitude atmospheric research flights near Philadelphia, Baltimore, and some Virginia cities, including ...