My 3 Greatest Revelations
The author on writing her book, Our Moon, about the power of our satellite to guide evolution and human curiosity.
The Violent Birth of the Moon
Did a colossal collision with a doomed planet give us our satellite?
As Planet Discoveries Pile Up, a Gap Appears in the Pattern
Astronomers are puzzling over a paucity of planets in the galaxy measuring between 1.5 and two times Earth’s size.
How Nearby Stellar Explosions Could Have Killed Off Large Animals
A new study suggests that subatomic particles called muons streamed through the atmosphere and fatally irradiated megafauna like the monster shark megalodon.