NASA eyes comet that will buzz Mars this year
Friday, January 31, 2014 - 17:00
in Astronomy & Space
NASA is keeping a keen and cautious eye on a comet that will have a close encounter with Mars in October, coming much closer to the Red Planet than the moon is to Earth.Comet Siding Spring will approach within 86,000 miles (138,000 kilometers) of Mars on Oct.