Jonathan C. White

I study physics and geology, and I'm working toward a career in geophysics. I also teach, explain, and write about what I learn.

Deep time

Earth is about 4.6 billion years old. Each block below is sized by how long that eon lasted.

  1. Hadean4.6 to 4.0 Ga
  2. Archean4.0 to 2.5 Ga
  3. Proterozoic2.5 Ga to 539 Ma
  4. Phanerozoic539 Ma to now

Geophysics

Physics and geology applied to understanding the Earth.

Science Communication

Outreach, teaching, and public explanation of scientific ideas.

Writing

Fiction and nonfiction about science, people, and places.