Satellites

The emergence of satellite megaconstellations like SpaceX's Starlink offers great benefits for humanity. But there are also substantial costs, including a growing imposition on astronomy.

After 25 years of drifting undetected in space, an experimental satellite that launched in 1974 has been found using tracking data from the U.S. Space Force.

SES plans to buy fellow satellite operator Intelsat, in a deal that could help the combined company compete with SpaceX's huge Starlink broadband network.

Portal has developed a new satellite bus called Supernova that the company says will allow unprecedented mobility in Earth orbit and beyond.

Russia's ambassador to the U.N. vetoed a resolution sponsored by the United States and Japan that called upon all nations to never deploy nuclear weapons in outer space.

A recent $32 million contract between the U.S. Space Force and Rocket Lab will lead to the creation of a spacecraft to enhance national security supporting space domain awareness.

The private ADRAS-J probe snapped an epic, up-close image of its rendezvous target, a Japanese rocket stage that's been circling Earth since 2009.

The U.S. Space Force is testing a new ground-based satellite jamming weapon to help keep U.S. military personnel safe from potential "space-enabled" attacks.

Reflect Orbital plans to launch a constellation of orbiting mirrors to beam sunlight to solar power plants on Earth after dark.

NASA's pioneering CloudSat weather and climate mission has come to an end after nearly 18 productive years in Earth orbit.