Thursday, November 14, 2013

Video: Two comets make rare double flyby of Mercury this month

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.

No comments: