Scientists may have discovered a lost continent
We might have to rethink our models of ancient Earth.
Mercury is the first planet after Earth with tectonic activity
Scientists have shown that the tiny planet is more alive than it seems on the surface.
Mars may have had explosive volcanoes
NASA's Curiosity rover suggests that early Mars wasn't as tame as we think it was.
Stanford looks to the skies to calculate underground water
New algorithm might hold the key to accurately mapping groundwater supply.
Earth's early air weighed half as much as it does today
The findings could force us to rethink how our planet developed.
NASA gives away the data from an Earth-mapping spacecraft
You can get all of ASTER's info for free.
Scientists to drill into asteroid impact that wiped out dinosaurs
They want to know how life recovered after the disastrous celestial collision.
Scientists may have found Earth's largest canyon
It's really just a huge hole in the ground.
UCLA chemist: Life on Earth began way earlier than we thought
Life might have started much, much earlier