The Book of Miracles, c. 1550

The Long History of Comet Phobia

Even the invention of the telescope couldn't convince all people to put aside superstitions about comets.

Where is Water From? Probably Not Comets

A recently completed analysis of comet 67P/C-G by the Rosetta Space Craft has effectively ruled out comets as the primary source of Earth’s water.

How to Catch a Comet

Last week, the European Space Agency (ESA) successfully landed an unmanned probe (Philae) on a comet, a feat heretofore unmatched in human history