The Keck Observatory and NASA’s Hubble Space Telescope may have uncovered a "potential three-body system in the Kuiper Belt," ...

Sedna, a distant dwarf planet three-quarters the size of Pluto, is inching toward the brightest star in our sky — and in 2076 ...

The author of Gemini: Stepping Stone to the Moon, The Untold Story talks about his new book.

SpaceX seeks regulatory permissions to start launching Starship-Super Heavy rocket systems from Launch Complex 37 at Cape ...

Space Rider is ESA's reusable spacecraft in development. It will be about the size of two minivans and will allow for many ...

The H-2A rocket lifted off from the Tanegashima Space Center in southwestern Japan, carrying the GOSAT-GW satellite as part ...