"During the early solar system's game of cosmic billiards, Earth was struck by a neighbor,” said Dauphas. “It was a lucky shot. Without the moon's steadying influence on our planet's tilt, the climate ...

"My first thought was, 'holy shmolies, that can't be right'. These are just very surprising results." When you purchase through links on our site, we may earn an affiliate commission. Here’s how it ...