Earth

The origin of life on Earth, explained

The origin of life on Earth stands as one of the great mysteries of science. Several seminal experiments have been conducted at UChicago, including the famous Miller-Urey experiment that suggested how life could form in a primordial soup.

How the Earth and moon formed, explained

How old is the Earth and how did we get our moon? Learn what we know and how we know it—and what mysteries still remain.