John M. Grunsfeld Quotes

All indications are that three and a half billion years ago, Mars looked like Earth. It had lakes. It had rivers. It had river deltas. It had snow-capped peaks and puffy clouds and blue sky. Three and a half billion years ago, it was a happening place. The same time on Earth, that's when life started. So did life start on Mars?

John M. Grunsfeld

Recitation: by Male by Female

Author Biography

Copyright © 2024 QuotesDict Quote by John M. Grunsfeld