Comets

Astronomers Classify Interstellar Visitor 'Oumuamua As A Comet

The scientists came to the conclusion after examining 'Oumuamua's trajectory.
By Will Dunham, Reuters

Pluto May Actually Be A 'Giant Comet,' New Study Suggests

The dwarf planet was reclassified once before in 2006.
By 

This Perfume Could Make You Smell Just Like A Comet

The bad news is, a comet smells like cat pee.
By