Consider it a cosmic coincidence: On Nov. 18-19, two comets (ISON and Encke) are going to fly by the planet Mercury in quick succession. NASA's MESSENGER spacecraft will have a front-row seat for the rare double flyby.
Receive DCNewsroom email alerts, subscribe here.
Home » comet »
comet 2013 »
comet ison »
ison »
ison comet »
nasa
» Video: Two comets make rare double flyby of Mercury this month
0 comments:
Post a Comment