Robert Lea is a science journalist in the U.K. whose articles have been published in Physics World, New Scientist, Astronomy Magazine, All About Space, Newsweek and ZME Science. He also writes about science communication for Elsevier and the European Journal of Physics. Rob holds a bachelor of science degree in physics and astronomy from the U.K.
Jam packed issues filled with the latest cutting-edge research, technology and theories delivered in an entertaining and visually stunning way, aiming to educate and inspire readers of all agesScientists have discovered a comet traveling one way out of the solar system after a close encounter with Saturn. . Yet, researchers were able to use 142 observations of the comet to"wind back" its orbit around the sun.
This is only the second solar system comet that we have seen in the process of being launched out of the solar system. The first was Comet C/1980 E1 , which was put on a solar system escape path by an encounter with Jupiter on Dec. 9, 1980. "Our results show that the case of comet A117uUD is similar to that of C/1980 E1 , disfavoring an extrasolar origin for A117uUD," the team behind the research write in a paper published in the journal"The fact that two ejections after planetary encounter were observed in less than 45 years suggests that such events are relatively frequent."It wasn't always clear that A117uUD was a solar system body destined to leave its home planetary system.
The encounter between A117uUD and Saturn impacted the comet's orbit to the extent that the team was unable to reconstruct it prior to the meet-up, but they did enough to assure themselves this wasn't a third extra-solar interloper. to keep talking space on the latest missions, night sky and more! And if you have a news tip, correction or comment, let us know at:
Robert Lea is a science journalist in the U.K. whose articles have been published in Physics World, New Scientist, Astronomy Magazine, All About Space, Newsweek and ZME Science. He also writes about science communication for Elsevier and the European Journal of Physics. Rob holds a bachelor of science degree in physics and astronomy from the U.K.’s Open University. Follow him on Twitter @sciencef1rst.
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