During the comet’s closest approach, Johnston — who sourced a model suggesting 7:12 a.m. to 8:06 a.m will be its brightest times — estimates it “will be bright enough to see during the daylight for ...
It is also theoretical. Astronomers infer the Oort Cloud is there because it’s the only logical explanation for the arrival of a certain class of comets that sporadically visit our solar system. The ...