“Earthgrazers” are fireball meteors with a trajectory so shallow that they skim long distances across the upper atmosphere, NASA says. The fireball appeared Tuesday, Nov. 9, around 6:30 p.m. Eastern Daylight Time, officials say, and was “detected by three NASA meteor cameras in the region.” It entered the atmosphere “at a very shallow angle — only 5 degrees from the horizontal.” In fact, it was flying for so long that NASA had to recalculate its data to determine how far it traveled across the planet. “The meteor was first seen at an altitude of 55 miles above the Georgia town...