Rocks on Venus's surface are on the move
Scientists made this discovery by re-analyzing data from the 1990s
Geologist uses ocean floor to solve the mystery of the Tibetan plateau
The details of how the "Roof of the World" formed have long been a geologic riddle
What ancient salt can tell us about life on Earth
Scientists are finding more evidence about how our planet gained oxygen
Four facts about Marie Tharp, the woman whose art mapped the bottom of the sea
She discovered the Earth's 'backbone' even though men wouldn't let her on a ship for 17 years