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Why the Best Place to Find Dark Matter May Be in a Rock
Dark matter may occasionally interact with minerals in the earth, leaving telltale tracks that physicists hope to decipher.
The Woman Who Gets Called When a Piece of Mars Falls From the Sky
Planetary geologist Meenakshi Wadhwa uses Martian meteorites to trace the history of our solar system.
A Universal Law for the ‘Blood of the Earth’
Simple physical principles can be used to describe how rivers grow everywhere from Florida to Mars.
World’s Oldest Fossils Now Appear to Be Squished Rocks
Evidence for life in 3.7-billion-year-old rocks appears to be crumbling away.
Fossil Discoveries Challenge Ideas About Earth’s Start
A series of fossil finds suggests that life on Earth started earlier than anyone thought, calling into question a widely held theory of the solar system’s beginnings.
Jason Morgan Recalls Discovering Earth’s Tectonic Plates
Jason Morgan developed the theory of plate tectonics in 1967 while working among a critical mass of talented geophysicists at Princeton University.
Explorers Find Passage to Earth’s Dark Age
Geochemical signals from deep inside Earth are beginning to shed light on the planet’s first 50 million years, a formative period long viewed as inaccessible to science.
A Quasicrystal’s Shocking Origin
By blasting a stack of minerals with a four-meter-long gun, scientists have found a new clue about the backstory of a very strange rock.
How Life and Luck Changed Earth’s Minerals
Did the minerals on our planet arise in a predictable fashion, or did they result from chance events? The answers could eventually help scientists identify planets likely to harbor life.