Avalon's dirty little secret: its beach is health hazard

By the hundreds of thousands each year, they sail to Avalon by ferry and cruise ship for diving trips, glass-bottom boat tours and to...

On a pilgrimage to the Ancient Bristlecone Pine Forest

The White Mountains that straddle the California-Nevada border are known for their extreme environment. They get less than a foot of rain...

Texas aglow with effort to save the incandescent bulb

It doesn't have the ring of "Remember the Alamo," but a new battle cry has gone up in Texas: "Remember the incandescent bulb."

Lionfish invading East Coast waters

Beware the lionfish.

Atlantis ends an era with liftoff

Space shuttle Atlantis rumbled like a freight train into orbit Friday in its historic last flight, lighting up a slate gray Florida sky that...

Alabama tornado team scours paths of killer storms

The Mobile Meteorological Measurement Vehicle — a worn-looking '90s-model Dodge Intrepid with classic rock on the radio, a tower of...

Making a trachea from scratch

Andemariam Teklesenbet Beyene left a Stockholm hospital Friday, breathing through a manufactured trachea that was built with his own stem...

Polar bear's ancestor is Irish brown bear, study finds

All polar bears alive today are descended from a female brown bear that most likely hailed not from Alaska, as widely presumed, but from...

California to fight apple moth infestations with tiny wasps

California agricultural officials will release hundreds of tiny, stinger-less wasps this month to combat the fruit- and leaf-eating light-...

Cancer patient receives lab-made windpipe

A 36-year-old man who had tracheal cancer has received a new lab-made windpipe seeded with his own stem cells in a procedure in Sweden that'...

Crowds throng space center for final shuttle launch

As the last opportunity to witness the launch of the space shuttle drew near, massive crowds converged Thursday on the Kennedy Space Center.

NASA spacecraft offers detailed views of Saturn's Great White Spot

Saturn's Great White Spot, a recurring storm on that planet that has intrigued scientists since it was first observed in 1876, is a windy,...

Colorectal cancer screenings making a difference, CDC says

Increased screening during the last decade for colorectal cancer, the nation's second-leading cause of cancer deaths, has put a sharp dent...

L.A. Unified takes new tack on whooping cough vaccine

Los Angeles school nurses on Wednesday exhausted their entire supply of 600 doses of thewhoopingcoughvaccine on students who began their...

Nuclear whistle-blower backed by watchdog agency

Walter Tamosaitis, once a top engineer in the nation's nuclear weapons cleanup program, has been relegated to a basement storage room...