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According to a recently published report, the report states Later this year, comet Siding Spring will have a very close brush with Mars. That brush will be so close, in fact, that it lead scientists to worry about the safety of the three spacecraft currently orbiting the planet. Some experts from the University of Maryland (UMD) have used a satellite mounted telescope to observe the “fresh” comet, however, and they find that it poses minimal danger to the Martian spacecraft.
Instead, the researchers believe that the NASA orbiters will have an unprecedented close-up view of changes occurring to the comet formerly known as C/2013 A1 as it approaches the sun, as well as any effects it might have on the Martian atmosphere.
Fresh comets are those that have never before approached the sun and therefore have not gone through the process of sublimation — or the transformation of frozen material from solid ice to gas. As such, fresh comets have some of the most ancient material scientists can study. The nucleus of the comet, or its solid center, is a lumpy, non-spherical clump of frozen gases mixed with dust, much like a dirty snowball.
“Comet Siding Spring is making its first passage through the inner solar system and is experiencing its first strong heating from the sun,” said UMD assistant research scientist Dennis Bodewits, lead researcher on the UMD astronomy team that used NASA’s Swift satellite to estimate the comet’s size and activity. “Comets like this one, which formed long ago and remained for billions of years in the icy regions beyond Pluto, still contain the primeval building materials of our solar system in their original state.”
Read more at http://www.redorbit.com/news/space/1113174650/comet-siding-spring-spacecraft-mars-062014/#roTDvqtAz0eAMl0c.99
Real-time visualization of comet Siding Spring
Learn More Here: http://www.solarsystemscope.com/?c=sidingspring
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