NASA's NICER telescope halts its mission after a key motor fails; engineers attempt to salvage eight years of space science.

As if dark energy weren't already mysterious and baffling enough, new research suggests that this unknown force may not be ...

It is widely accepted that the universe is expanding at an accelerating rate, but now researchers say our measurements of the ...

Quantum satellites currently beam entangled particles of light from space down to different ground stations for ultra-secure ...

The universe's expansion may actually have started to slow rather than accelerating at an ever-increasing rate as previously ...

The US military is close to fielding two new weapons designed to temporally jam Chinese and Russian intelligence, surveillance and reconnaissance satellites, giving the Pentagon three counter-space ...

A scientist has recently posited that a mysterious interstellar object, potentially of extraterrestrial origin, appears to be ...

Scientists on the ISS are studying how condensation works in space to improve cooling systems for electronics on Earth and in ...