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