The Deep Impact spacecraft will soon be making a close approach of the comet Hartley 2.
A brown dwarf star could be circling the sun and throwing extinction sized comets in our direction.
Earth's oceans may not have been formed as the result of vapors emitted during early volcanism but may have instead been...
A new mechanism devised to explain how icy bodies from the Oort cloud get past Jupiter and Saturn has revealed that it i...
When a massive comet smashed in to the Earth 65 million years ago it caused widespread devastation that saw the end of t...
A barrage of comets some 3.85 billion years ago could have accounted for the arrival of the Earth's oceans a new study h...
During the first million years of their formation comets would have contained large amounts of liquid water it has been ...
The 1908 explosion over Tunguska in Siberia was most certainly caused by a comet it has been claimed. The conclusion is ...
A team at Tel Aviv University has found that comets could have brought the missing ingredients required for life in Eart...
Scientists have warned that 'dark comets' could pose a threat to the Earth and that we won't be able to detect them. A c...