We've seen it happen in science fiction, but could artificial gravity actually be generated for future space travellers?

The Earth orbits the Sun. Then why doesn't the Earth fly away from the Sun into the depths of space? The one who provided the ...

A speculative mission concept proposes sending laser-powered, gram-scale spacecraft to a black hole that could potentially ...

A decade-long NIST experiment has produced a new measurement of the universal gravitational constant that differs ...

Near the center of the Milky Way, a star is racing around Sagittarius A* at speeds reaching 25 000 km/s. Named S301, it is ...

According to Einstein's theory of general relativity, gravity does not discriminate. Matter, antimatter – it's all the same ...

Does gravity act equally on all particles in the universe, or are there differences between ordinary and exotic matter?