China routinely sends astronauts to and from its space station Tiangong. A crew capsule is about to undock from the station ...

Dan Falk: Space junk broadly refers to stuff that’s in space that was put there by humans, and that is no longer doing what ...

High up in Earth's orbit, millions of human-made objects large and small are flying at speeds of over 15,000 miles per hour.

Using a high-energy X-ray system, they turned the satellite effectively transparent, revealing fuel and gas tanks, hidden ...

Astronomers have long been concerned about reflections from satellites showing up in images taken by telescopes and other ...

Low Earth orbit is starting to look less like pristine frontier and more like a crowded junkyard, packed with dead satellites ...

A new scientific review is urging the space sector to rethink the way rockets, satellites, and orbiting hardware are designed ...

Google’s Project Suncatcher would need sophisticated collision avoidance capabilities to navigate a junk-filled landscape.

Satellite breakups and anti-satellite tests have created an alarming amount of debris, a crisis now exacerbated by the rapid expansion of commercial constellations such as SpaceX’s Starlink. The ...

A circular space economy could transform wasteful spaceflight into a sustainable, reusable system for the future.

SQUIRE aims to detect exotic spin-dependent interactions using quantum sensors deployed in space, where speed and ...