YR4, once the highest impact risk ever recorded, now poses no threat to Earth but has a slightly increased chance of striking ...

The perspective is what astronauts would see out their window if there was an International Space Station flying around the ...

NASA’s Mars Odyssey captured a stunning sunrise view of Arsia Mons, revealing water-ice clouds and offering insights into ...

The U.S. science community has grown "completely reliant" on SpaceX, said Col. Terry Virts, a former NASA astronaut.

The Milky Way is the only known galaxy to have life. But, in a couple billions of years, every trace of our existence will be ...

Orbitt wants to build spacecraft that overcome these headwinds with air-breathing electric propulsion systems that use ...

Scientists have found 20 large asteroids near Venus with erratic orbits that could one day collide with Earth, posing a ...