Astronomers tracking the skies around our planet have picked up two very different cosmic companions: a vast interstellar ...

For the first time, astronomers have captured X-ray portraits of a comet from beyond our solar system, are providing a ...

One million alien visitors from another star system could already be lurking in the solar system. We aren't talking about "little green men" here, however — more "little (and not so little) gray rocks ...

What: A forward-looking SETI Live discussion examining the most significant space science missions, discoveries, and ...

NASA’s Goddard Space Flight Center shared the images of comet 3I/ATLAS. It's possibly as big as Manhattan, likely older than our own solar system and it's traveling through space at speeds of up to ...

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

Space-based solar power advances with microwave and laser transmission, orbital assembly, and cost reductions, aiming for ...

The system is based on a highly compact and flexible ultrathin soft solar blanket that acts as the collection panel and can unroll once the satellite reaches orbit. As it does so, a 3D printer system ...

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

A new study assesses the risk of space-based solar power satellites damaging nearby orbital space infrastructure with ...

Astronomers have discovered that the Solar System traversed the Orion star-forming complex, a component of the Radcliffe Wave galactic structure, approximately 14 million years ago. This journey ...