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Rammed Earth

July 16, 2009

The right amount of water can make a green building material super-sturdy.

July 15, 2009

Satellite instruments can measure the health of the ocean's tiny - but vital - phytoplankton.

July 14, 2009

Researchers are designing a small robot to scour cargo containers for contraband.

July 13, 2009

New computer programs generate real-time, accurate sounds for virtual-reality events.

July 10, 2009

Increased rates of cancer in wild animals could spell bad news for threatened and endangered …

July 9, 2009

A listener asks: Why do dogs wag their tails?

July 8, 2009

An evolutionary quirk in the sex hormones of sea lamprey could help bring the destructive Great …

July 7, 2009

Bacteria trapped in eons-old ice could shed light on extraterrestrial life.

July 6, 2009

Dinosaurs may have been smaller than previous estimates.

July 3, 2009

Today's cows are more efficient than those of 50 years ago.