lunedì 4 agosto 2014

NYT Science: Celestial Traveler, Closing on Mars

Celestial Traveler, Closing on Mars
By MARC KAUFMAN

On its first visit to the inner solar system, Comet Siding Spring will pass within 82,000 miles of the planet, offering a first-time view of so close an encounter.

Published: August 5, 2014 at 4:00AM

via NYT Science http://ift.tt/1omuF2S