7,847 results
7,847 results for: Geology
- Earth
Buying time when quakes hit
On the West Coast, geologists are developing an earthquake warning system that can provide seconds of notice before destructive shaking begins. The system could be ready before the next big quake hits.
- Earth
How the West was done
The tectonic history of North America’s Pacific Rim gets even more jumbled.
- Planetary Science
Mars rover fails to find methane
A dearth of the gas in the Red Planet's atmosphere disappoints scientists looking for signs of biological activity.
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- Earth
Oxygen wafted into Earth’s atmosphere earlier than thought
Date pushed back to 3 billion years ago, suggesting photosynthesis had evolved by then.
- Earth
Japan’s 2011 earthquake upped Tokyo’s risk
Chance more than doubled that capital city will soon experience big temblor, researchers calculate.
- Earth
Breakups maintain barchan dune fields, somehow
Two new theories try to explain how the crescent-shaped sand mountains persist.
- Earth
Life’s early traces
Tiny tufts, rolls and crinkles in 3.5-billion-year-old rocks add to a growing body of evidence suggesting that cellular life got a relatively quick start on Earth.
- Earth
Buried Saharan rivers might have been early expressways
Humans might have migrated across the arid region along three once-lush waterways.
- Planetary Science
Europa vents water, Hubble data suggest
Plumes from ice-covered oceans would increase likelihood of life-friendly conditions on one moon of Jupiter.
- Earth
Faults can reseal months after quakes
Measurements in southern China find quick healing of fractured rock.
- Animals
Oxygen boost aided carnivore evolution in Cambrian explosion
Atmospheric change and rise of predators caused burst in complexity of life.
