Aliens are visiting our solar system. Not little green men, sadly, but natural alien objects—cosmic bodies such as comets and ...

Astronomers think small space rocks from beyond our solar system routinely strike Earth—but proving it isn’t easy ...

A new study by experts from Nasa and the University of Oxford suggests that Uranus gives out more heat than it receives from ...

A team of astronomers led by Macquarie University has monitored the orbital decay of an extreme exoplanet to gain new ...