|Once in million years: Comet buzzing Mars on Sun.|
|News - St Augustine Area & St Johns County|
CAPE CANAVERAL — The heavens are hosting an event this weekend that occurs once in a million years or so.
A comet as hefty as a small mountain will pass mind-bogglingly close to Mars on Sunday, approaching within 87,000 miles at a speed of 126,000 mph.
NASA’s five robotic explorers at Mars — three orbiters and two rovers — are being repurposed to witness a comet named Siding Spring make its first known visit to the inner solar system. So are a European and an Indian spacecraft circling the red planet.
Read entire article: Once in million years: Comet buzzing Mars on Sun.