Dark energy: new experiment may solve one of the universe's greatest mysteries

As an astronomer, there is no better feeling than achieving “first light” with a new instrument…

Researchers use light emitted from nanoparticles to control biological processes

The biological technique of ‘optogenetics’ uses light to control cells within living tissues that have been…

In an interconnected world, can environmentalists really 'act locally'?

Like many Americans, I worry about the state of the planet and try to make a…

Humanity's birthplace: why everyone alive today can call northern Botswana home

Where was the evolutionary birthplace of modern humans? The East African Great Rift Valley has long…

Sewage, rivers and soils provide missing link in antibiotic resistance story

If you think that the key to beating antibiotic resistance is only for doctors to prescribe…

Scientists synthesize light with new intrinsic chirality to tell mirror molecules apart

Light is the fastest way to distinguish right- and left-handed chiral molecules, which has important applications…

Red algae thrive despite ancestor's massive loss of genes

You’d think that losing 25 percent of your genes would be a big problem for survival.…

Air Force's mystery space plane lands, ends 2-year mission

The Air Force’s mystery space plane is back on Earth, following a record-breaking two-year mission. …

Fishing plastic 'ghost nets' out of the Baltic

On a small fishing boat out in the Baltic Sea, Pekka Kotilainen rifles through buckets of…

Virgin Galactic becomes first space tourism company to land on Wall Street

Virgin Galactic landed on Wall Street Monday, debuting its listing on the New York Stock Exchange…