The comet is such an unusal visitor that Nasa has set up a tracker for people to keep an eye on what its doing. It passed ...

A deeper reach into human history is now possible, thanks to a growing body of archaeological data collected using advanced ...

Exoplanet hunters Christopher Watson and Annelies Mortier explain the long search for a 'twin Earth' capable of sustaining ...

The Yucatan has perfectly preserved colonial towns, lush nature preserves, and archaeological wonders, and a new railway ...

Astronomers using the Hubble Space Telescope have observed a white dwarf – a highly compact stellar ember – that appears to have gobbled up an icy world akin to the dwarf planet Pluto, a finding with ...