This is the next flagship space observatory.

Here's how you can watch live as four astronauts selected for the Crew-13 mission launch atop a SpaceX rocket for the International Space Station.

NASA's new Nancy Grace Roman Space Telescope is set to launch atop a SpaceX Falcon Heavy rocket. The observatory will study dark energy and search for exoplanets, building on the work of the Hubble ...

NASA begun fueling its moon rocket Wednesday for humanity’s first lunar trip in more than half a century, aiming for an evening liftoff with four astronauts. Tensions were high as hydrogen fuel ...