Grand Canyon

Green Impact Billion-year geological model explains the Great Unconformity seen in the Grand Canyon

Earth’s slow continental rise and fall may explain how the Great Unconformity formed and survived, linking missing rock records to currents deep in the mantle.

Joshua Shavit

Discoveries Fossil discovery in the Grand Canyon reveals a sea world teeming with strange prehistoric life

Space Scientists discover America’s largest impact crater from 35 million years ago

Discoveries Thrill of a lifetime: Try the world’s highest bungee cord jump off this 430-meter suspension bridge

Global Good Geologists dig into Grand Canyon’s mysterious gap in time