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Downfall of Homo antecessor, Ancestor in Name Only

Details make the story of Homo antecessor an improbable tale of human evolution.

Chinese Dinosaurs May Have Been Buried in Volcanic Ash

A new analysis of Chinese fossils claims a Pompeii-style eruption buried them suddenly. What does this imply about dating the fossils?

Grand Canyon Age Changes Again

Is the Grand Canyon old or young? Both, geologists are now saying. The latest theory, though, is unlikely to end the 140-year debate.

Another Geyser World Erupts: Asteroid Ceres

The asteroid Ceres is popping off with water vapor on two sides. What's that world coming to? One thing is sure: DAWN is coming to it.

Tiktaalik Is Back, This Time With a Hip Twist

Discoverer of a putative ancestor of tetrapods thinks it came with rear-wheel drive.

Hubble Finds Early Large Galaxies

The latest deep space image by the Hubble Space Telescope shows many small galaxies near the beginning, but large ones, too.

Venus: 80% of Its History Is Missing

In spite of being called Earth's twin, Venus is vastly different. Scientists are struggling to fit its young surface to 4.5 billion years.
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