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Modern Culture May Have Emerged 30,000 Years Earlier Than Thought
Poisoned-tipped arrows and jewelry made of ostrich egg beads found in South Africa show modern culture may have emerged...
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Massive Landslides Spotted on Saturn’s Icy Moon
Landslides up to 50 miles long, spotted on Saturn’s moon, Iapetus, could help provide clues to similar movements of...
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Century of Drought May Be Ahead
A drought that gripped western North America from 2000 to 2004 was the worst since the Middle Ages, but...
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Flaring Black Holes May Solve Cosmic Ray Puzzle
Where do ultra high-energy cosmic rays come from? These charged particles zoom to Earth from outer space, but why...
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Planetary Science: The Time Machine
Dating features on the Moon and Mars is guesswork. Scott Anderson is building a tool to change that.
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Genetic Data, Fossil Evidence Tell Differing Tales of Human Origins
After decades of digging, paleoanthropologists looking for fossilized human bones have established a reasonably clear picture: Modern humans arose...
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Why Do We Keep Going Back to Mars?
The huge NASA rover speeding toward an August landing on Mars may be the most capable and complex Red...
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Actinobacteria as the Base of the Evolutionary Tree
Ever since Darwin first published The Origin of the Species, scientists have been striving to identify a last universal...
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Anti-Matter Universe Sought By Space-Based Detector
A seven metric ton particle detector parked for over a year on the International Space Station (ISS) aims to...
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Kepler Spots Perfectly Aligned Alien Worlds
When NASA’s Kepler space telescope started finding planets at odd angles to their parent stars, scientists wondered if our...