It's been a while since anything big hit the planet. As far as we remember, the most recent impact that did any serious damage was about 65 million years ago. Well, buckle up: it won't be an ecosystem-destroying calamity, but this weekend, the plummeting space station Tiangong-1 might end that streak.
Heaven Over Earth
Written by Reuben Westmaas March 29, 2018
Wake up with the smartest email in your inbox.
Our Best Articles Daily