The trailblazing Harvard scientist, who documented the dominance of hydrogen and helium in stars, is still inspiring ...

We may be starting to get a grasp on what kick-started life on Earth – and it could help us search for it on other planets ...

The NASA astronauts splashed down on Tuesday in a SpaceX capsule after problems with a Boeing vehicle set in motion a ...

Nasa astronaut Sunita Williams finally returned to Earth after her prolonged nine-month stay at the International Space ...

Astronauts Suni Williams and Butch Wilmore made splashdown on Earth on Tuesday after spending nine months in space. A SpaceX ...

Sunita Williams and Butch Wilmore, along with American astronaut Nick Hague and Russian cosmonaut Aleksandr Gorbunov, made a ...

Wilmore and Williams spent 286 days in space- 278 days longer than anticipated when they launched. They circled Earth 4,576 ...

The constellation will keep a close eye on wildfires, eventually imaging nearly all of the Earth’s surface once every 20 ...

Indian-origin astronaut Sunita Williams, who had been in space for the past nine months, successfully returned to Earth early ...

After an unexpectedly prolonged mission aboard the International Space Station (ISS), NASA astronauts Sunita Lyn “Suni” ...

NASA’s Butch Wilmore and Suni Williams, whose weeklong Boeing Starliner mission turned into an extended stay in space, have ...

NASA removed two astronauts from its Crew-9 mission to allow for Williams and Wilmore to join the cohort, and return onboard ...