The JWST could see a 25-35% reduction in operations, and some Hubble instruments may have to fend for themselves.

Russia's co-orbital satellite tactics are redefining space deterrence and signaling a more aggressive phase in orbital ...

The Bullseye galaxy has nine rings, more than any other known galaxy. These rings formed from a collision with a smaller galaxy. The collision created new stars, visible as blue and red rings. The ...

Astronomers studied 10,000 stars in Hubble pictures to make this composite image and to learn about the evolution of the Milky Way galaxy. Light from our own galaxy is the most recently produced ...

China appears on the verge of carrying out a historic satellite-to-satellite refuelling mission in high orbit, a potential advance that has prompted the US to deploy two military surveillance ...

Scientists using NASA's Hubble Space Telescope went looking for evidence of one phenomenon and found quite another. The research team studied the four largest moons of the ice giant Uranus, the ...

If these two satellites in GEO can actually pull off a refueling, it will be a huge leap for China's, and even the world's, ability to operate in space, opening up all sorts of new possibilities.

EU needs ‘crucial’ spy-satellite network, defence chief tells European Space Agency Defence and Space Commissioner Andrius Kubilius wants to work with others on a spending plan.

Hubble's data points to a slow inward drift of dust from Uranus' distant irregular moons, which orbit between 2.5 to 13 million miles (4 to 20 million kilometers) from the planet.

T-Mobile has released the final details of its T-Satellite service. The company also revealed a new award it received, and announced a new perk for customers. Following a successful beta test ...