An ailing astronaut is back on Earth. The crew of four have returned Thursday, ending their space station mission more than a ...

One U.S. and two Russian astronauts remain aboard the orbiting lab, just 1 1/2 months into an eight-month mission that began ...

The US, China, India, Europe and Japan all have exciting missions on the horizon in 2026. Many of them are collaborative ...

"Awards like these are a critical component of our incubator program for future missions, which combines government ...

Among other things, the James Webb Space Telescope is designed to get us closer to finding habitable worlds around faraway ...

Which way is ‘down’ has a different answer depending on where you are on Earth, in the solar system, in our galaxy and beyond ...

I/ATLAS is a newly detected interstellar object that entered the solar system from outside our stellar neighborhood, ...

This composite image was weeks in the making, as Horálek’s two "crossings" happened months apart. Mars traced its path ...

That’s less than half its existing 25,000-square-foot office space at Republic Plaza. Morrison Foerster’s lease expires there ...

How does a star affect the makeup of its planets? And what does this mean for the habitability of distant worlds? Carnegie's ...

Long-term satellite measurements show that Earth’s magnetic field is changing faster and more unevenly than expected, driven ...

Scientists measured mass and distance of free floating planet drifting through space without star for first time.