Orbital transfer vehicles launch atop rockets, carrying other spacecraft that they deliver to specific, often hard-to-reach, ...

The 55-feet-wide space rock is hurtling through space at a zippy 17,717 miles per hour, according to the space agency.

"The planet gets in the way from the point of view of any one spacecraft, so we had to spread them around the planet to look ...

Sean Duffy, the acting administrator of NASA for a little more than a month, has vowed to make the United States great in space.

In a landmark moment for Earth observation technology, the NASA-ISRO Synthetic Aperture Radar (NISAR) mission has successfully deployed its giant 33-foot radar antenna reflector in orbit. As reported ...

NASA experts explain why a passing asteroid isn't cause for concern, while revealing how often Earth encounters space rocks ...

A deceptive difference having to do with Earth's and Mars's gravity may be the reason why NASA's rovers get stuck in the ...

SpaceX is preparing to launch two missions this week - a NASA space station resupply mission and the mysterious Space Force X-37B space plane.

NASA's Europa Clipper nailed a major radar test during a Mars flyby, proving it’s ready to peer into Europa’s mysterious icy ...

Carrying an advanced radar system that will produce a dynamic, three-dimensional view of Earth in unprecedented detail, the ...

Three out of seven Earth-sized planets in the TRAPPIST-1 system are likely without an atmosphere, ruling them out as ...

Their Dragon capsule called Endurance is scheduled to splash down at approximately 11:33 AM Eastern time off the coast of ...