Maybe 'Oumuamua' wasn’t the first visitor from another star system after all. - NBCNewsMACH
, spewing gas in its wake. Once one of these objects enters our atmosphere, it becomes a meteor, and any piece that survives all the way to the ground becomes a meteorite.
,” said Franck Marchis, a senior planetary astronomer at the SETI Institute in Mountain View, California. “It will be great to get a fragment of [an interstellar meteor] to truly understand the conditions of the long trip between stars.” "I don't think we can rule out the bound [inside our solar system] trajectories based on the available evidence,". Peter Brown, a meteor astronomer at the University of Western Ontario, called the uncertainties a"huge red flag," adding,"It's very difficult to measure the orbits and the speeds with enough accuracy to say definitively, 'this particular one is interstellar.
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