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Comet Tossing Boulders

20 September 2019

This story takes us back to the ESA Rosetta Mission to Comet Churyumov-Gerasimenko in 2014. Is it that long ago. Researchers are still sifting through and analysing data transmitted back by Rosetta – some 76,000 images in high resolution were captured using the OSIRIS camera – go to https://archaeologynewsnetwork.blogspot.com/2019/09/comets-collapsing-cl… … especially when it comes to the dust, gases, and plasma environment etc. Scientists have been looking at surface changes, from one image to the next ….

                  ….                      … and in particular what changes might have occurred prior to perihelion, and afterwards. Loose debris is seen all over the comet but sometimes boulders were dislodged and captured by the camera, even in the process of being ejected into space or rolling across the landscape. the neck region, twtween the two lobes, was in particular most illuminating.

Over at https://phys.org/news/2019-09-intercept-interstellar-comet-c2019-q4.html …. could Comet Barisov be intercepted is the question flying around some circles. Some scientists want to quickly arrange an interception in order to get a close look as they think it might be an interstellar cosmic object. One factor of interest is the transfer of molecules from one star system to another – the building blocks of life. Did life originate outside our solar system. Is panspermia now a serious theory – unlike its reception when first mooted by Fred Hoyle and Chandra Wickramasinghe.

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