A new sensor technology under development promises to give security screeners a peek through clothing without revealing the naked details, a scientist says.
Archive for March, 2007
Spotted and spinner dolphin populations in the eastern tropical Pacific Ocean have yet to recover, despite nearly 20 years of friendlier tuna fishing practices, researchers say.
But no one is quite sure why the dolphins are having a hard time bouncing back.
Like following a trail of genetic breadcrumbs, researchers have used pig DNA to reconstruct the migration route of humans out of Asia and into the Pacific.
Virgin Galactic, the space tourism venture of billionaire entrepreneur Sir Richard Branson, is the first step toward hypersonic travel between Earth-based cities, according to a company executive.
Rapid improvements to the efficiency and power of light-emitting diodes (LEDs) will soon allow the decades-old technology to revolutionize how we illuminate our world, according to an industry expert.
The U.S. Air Force is preparing to test a new vehicle that could make missiles—and someday, jets—travel ten times faster than those flown today, military officials say.
The research vehicle, known as the X-51A, will be able reach hypersonic speeds when it is tested in 2009.
High in the Canadian Arctic, large tracts of tundra have given way to forests of spruce trees and bushes in response to a spike of warming temperatures nearly a century ago, according to a new study.
The transition took place more quickly than scientists thought, suggesting that tundra could keep shrinking as temperatures continue to warm.