Low-Earth orbit is more crowded—and fragile—than it looks. Satellites constantly weave past each other, burning fuel and ...

Solar power has become an important part of our civilization, especially in recent years, and it is presently crucial to our existence. Solar panel farms spread far and wide across the planet, on ...

SpaceX claims putting data centers in orbit will be cheaper and more environmentally friendly than building them on land.

In late November, a Cessna turboprop aircraft flying at an altitude of 5,000 meters performed an impressive world-first demonstration. Flying over Pennsylvania, the small airplane wirelessly beamed ...

What can star variability—changes in a star's brightness over time—teach astronomers about exoplanet habitability? This is what a recent study accepted for publication in The Astronomical Journal ...

A new "Tatooine-like" planet outside the solar system may orbit two failed stars, scientists reported Wednesday.Related video above: The dark energy pushing our universe apart may not be what it seems ...