Study reveals startling decline in European bird populations

Bird populations across Europe have experienced sharp declines over the past 30 years, with the majority of losses from the most common species, say the University of Exeter, the RSPB and the Pan-European Common Bird Monitoring ...

Shuttle monument dedicated in Florida

A 15-foot (4.4-meter)-tall shuttle monument of stainless steel and granite has been unveiled on Florida's Space Coast.

Two photons strongly coupled by glass fiber

Usually, light waves do not interact with each other. Coupling of photons with other photons is only possible with the help of special materials and very intense light. Scientists in Vienna have now created the strongest ...

Improving imaging of cancerous tissues by reversing time

As a child, it was fascinating to put a flashlight up to our palms to see the light shine through the hand. Washington University in St. Louis engineers are using a similar idea to track movement inside the body's tissues ...

Virgin 'ignored' space safety warnings: expert (Update 3)

Virgin Galactic "ignored" repeated warnings in the years leading up to the deadly crash of its spacecraft in California, a rocket science safety expert said Sunday, as investigators hunted for clues to the accident.

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