Scientists use seismic waves to locate missing rock under Tibet

Geologists at the University of Illinois at Urbana-Champaign have located a huge chunk of Earth's lithosphere that went missing 15 million years ago. By finding the massive block of errant rock beneath Tibet, the researchers ...

Extinction rates and causes studied

Canadian scientists say habitat fragmentation, over-exploitation and global warming could accelerate the risk of extinction for many species.

Shuttle moves to Vehicle Assembly Building

Space shuttle Atlantis was transported to NASA's Vehicle Assembly Building at Cape Kennedy Wednesday morning -- the first step toward the launch pad.

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