Aloft over the landscape of Bavaria some 147 million years ago was a pterosaur - an ancient flying reptile - with a wing span ...
Ever since William Herschel discovered Uranus in 1781, astronomers have been eager to find new planets on the outer edge of the solar system. But after the discovery of Neptune in 1846, we've found no ...
Billions of years ago, a giant asteroid struck the moon with so much energy that it melted rock until it was super-heated and white-hot, or what scientists call impact melt. This eventually cooled and ...