A massive (and some smaller) asteroid just passed close to Earth

[ad_1] Artist’s impression of a large space rock. NASA / JPL-Caltech A mountain-sized asteroid crossed our cosmic neighborhood on Wednesday and humanity survived, because even a spatially close pass isn’t really that close. In fact, asteroid 1998 OR2 It was always less than 3.9 million miles (6.3 million km), which …

Read More »