7,847 results
7,847 results for: Geology
- Space
50 years ago, scientists found a lunar rock nearly as old as the moon
Studies of such rocks continue to reveal secrets about the moon’s history.
- Planetary Science
Saturn’s ‘Death Star’ moon might contain a hidden ocean
A fresh look at Cassini data reveals slight changes in the tiny moon’s orbit that suggest the presence of a vast ocean beneath the satellite’s icy shell.
- Earth
Where are U.S. earthquakes most likely? A new map shows the hazard risks
Updates to the National Seismic Hazard Model have elevated the average ground shaking hazard across the country.
- Materials Science
A materials scientist seeks to extract lithium from untapped sources
Lithium is an essential ingredient for batteries in electric vehicles but getting enough will become a problem.
- Life
Mega El Niños kicked off the world’s worst mass extinction
Long-lasting, widespread heat and weather extremes may have caused the Great Dying extinction event 252 million years ago.
- Planetary Science
An asteroid may have exploded over Antarctica about 2.5 million years ago
Tiny spherules of rock found in Antarctic ice may point to the oldest known “airburst,” or midair disintegration of an incoming asteroid.
- Earth
An ancient earthquake changed the course of the Ganges River
Flooding from a similar earthquake today could threaten about 170 million people in India and Bangladesh who live in low-lying regions nearby.
- Climate
Canada’s Crawford Lake could mark the beginning of the Anthropocene
The mud of a Canadian lake holds an extremely precise record of humans’ influence on Earth. But the Anthropocene isn’t an official geologic epoch yet.
- Earth
Freshwater first appeared on Earth 4 billion years ago, ancient crystals hint
Oxygen ratios in ancient zircon crystals suggest that the planet’s water cycle got started hundreds of millions of years earlier than thought.
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- Planetary Science
Pluto’s heart-shaped basin might not hide an ocean after all
Planetary scientists propose an alternative theory to explain why Sputnik Planitia has stayed put across Pluto’s equator.
- Climate
Why Hurricane Helene was so devastating
The tempest caused record-breaking storm surge on the coast and widespread and deadly flooding and debris flows in the Appalachian Mountains.
