Intersession 2020
Digging into Earth's history
Published Jan 28, 2020Across the dry, scrubby hills of the Mojave Desert, a group of Johns Hopkins scientists and students spent three weeks this month working to understand millions of years of Earth's history. Evidence of ancient ice ages, remnants of geochemical events that disturbed prehistoric oceans, and fossils of the oldest living organisms on the planet are compressed in the strata of exposed rocks—nature's record keepers.
