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https://www.nbcnews.com/science/spac...net-9-rcna1872
Marduk's star revisited, eh? Clever Babylonians they were... --- While I am at it, German media yesterday spread news on that astronomers probably made a very big calculation mistake regarding the close meeting of Earth with stellar object named Apophis, which is expected to pass Earth harmlessly in I think 2029 but will accelerate from that swing-by, but will meet Earth again in 2068 (or 2069). So far it was assumed that it will then most likely miss Earth, but that now seems to be in doubt due to having miscalculated the socalled Jarenowski effect. That is the solar wind heating up the object on just one side. Minimally more than the other, colder side, but enough to cause an effect of deviating the flight path microscopically small from the warm side radiating at one side of the object and thus serving like a thrust engine with minimal efficiency. But the small effect, this almolstz unmeasurbale course deviation and chnage in angles adds up over the distances the object will cover over roughly half a century until then. German newspaper wrote the object is expected to be caught by the gravitation of Earth in 2069, and will thus impact on the surface with the energy of around 16 times as much as the biggest man-made nuclear explosion so far (which AFAIK would have been the Sovjet Tzar bomb). Just years ago the Apophis object had been deleted from some high risk list of NASA. Not sure what to make of this, or what to make of both news. Just reporting it, and it were no dubious sources, but national newspapers I occasionally quote from. Okayokay, national newspapers are dubious, too. ![]()
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