NASA’s swift satellite tallies water production of Mars-bound comet

In late May, NASA’s Swift satellite imaged comet Siding Spring, which will brush astonishingly close to Mars later this year. These optical and ultraviolet observations are the first to reveal how rapidly the comet is producing water and allow astronomers to better estimate its size.

from Space & Time News — ScienceDaily http://ift.tt/1ppVbx0

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