Voyager 1: Messages from the Edge

NASA's Voyager 1 has passed into the border region at the edge of the solar system and now is sending back information about this never-before-explored area, say scientists at the University of Maryland.

AIDS vaccine trial exceeds expectations

An experimental AIDS vaccine of Merck & Co. has exceeded expectations and led to a double enrollment in the trial to 3,000, researchers said.

Displaced students to contine work online

When Desiree Cook's family realized Hurricane Katrina was headed right for their home, they packed up their belongings and took a 14-hour drive west to Houston. Though the storm wrecked the University of New Orleans senior's ...

Telecom crews ready for Rita's rampage

Cadres of telecom crews are standing by for the arrival of Rita, the second major hurricane to plow into the wobbly Gulf Coast this season.

Endangered species rewrite approved

A U.S. House of Representatives bill would make it harder for federal officials to set aside swaths of habitat for endangered plants and animals.

Supernova Explosion May Have Caused Mammoth Extinction

A distant supernova that exploded 41,000 years ago may have led to the extinction of the mammoth, according to research that will be presented tomorrow (Sept. 24) by nuclear scientist Richard Firestone of the U.S. Department ...

Mechanism regulating tooth shape formulation found

One of the remaining challenges for evolutionary developmental studies of mammals, whose evolution is best known from their teeth, is how their tooth shape is altered during development.

NIST atomic fountain clock gets much better with time

The world's best clock, NIST-F1, has been improved over the past few years and now measures time and frequency more than twice as accurately as it did in 1999 when first used as a national standard, physicists at the National ...

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