These Periodic Comets Stun and Amaze Us Again and Again

[DrStrangelove]

These Periodic Comets Stun and Amaze Us Again and Again

Today we give you eight comets that have an orbit. These celestial bodies travel throughout space on a clearly defined path, so if you miss it, it'll most certainly be back. Some of these you'll recognize but a few will leave you scratching your head.

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[Kenjitsuka]

Recently, and by recently I mean August 6, 2014, it was boarded by the ESA's Philae.

Whoops! On that day Rosetta reached it, which was no big deal if you Google it...
The boarding by Philae was obviously yesterday, Nov. 13th 2014... :\