![]() ![]() "There has never been a meteorite recovered from any object that hits the atmosphere moving at more than 28 kilometers a second ," said Brown, who studies meteors and small solar system bodies such as asteroids. If the meteor did in fact enter Earth's atmosphere at the speeds reported, Brown said, it would have been vaporized into fragments much smaller than the spherules Loeb's expedition discovered. Peter Brown, an astronomer at the University of Western Ontario, agreed with Genge. ![]() "There never has been a micrometeorite derived from a specific fireball event, and never will be, since it is an impossibility." "Meteorite ablation debris has been found, but not from an instrumentally observed fireball," Genge told via email. Phil Metzger, a planetary scientist at the University of Central Florida, wrote in a July 16 Twitter post that "connecting that meteor to a few tiny balls of metal taken from a vast area of ocean floor isn’t a capability of the Space Command."Įchoing that, Matthew Genge, a planetary scientist at Imperial College London who specializes in meteorites, said that connecting the spheres with the 2014 fireball - or any meteorite fragments with any other meteor - is impossible. However, some say that making the leap from that memo to the spherules Loeb recovered isn't possible. ![]() Space Command asserting that Department of Defense data indicate an interstellar trajectory for the Janufireball over the Pacific Ocean. ![]()
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