Earth, captured once a day by the EUMETSAT meteorological satellite, have been time-lapsed. (video looped) Credit: Simon ...

Planetariums were a hit with the public. Within decades, they had spread around the world – the first planetarium in the ...

University of Arizona astrophysicist Erika Hamden takes readers on a romp through a "Weird Universe" in her debut popular ...

Imagine you're an alien living in the Andromeda galaxy, 2.5 million light-years away, peering back at Earth through a massive ...