The Second Coming of Biofuels

Plant-based fuels have been a big disappointment to date, but new "green biofuels" might fulfill their promise. 09.02.2008

The Race to Save the Hubble Telescope

An inside look at what may be the toughest space mission ever attempted. 08.28.2008

Oldsters' New Fountain of Youth: Video Games

Some specially tailored games seem to help preserve mental fitness. 08.27.2008

Smell Your Way to Happiness

An ancient type of incense seems to act like an antidepressant drug when injected. 08.26.2008

Is the Universe's Energy Smothered in Dust?

A good dusting of 10,000 galaxies reveals tons of hidden energy. 08.23.2008

Next-Generation Semiconductor Was First Created Elsewhere in the Cosmos

A rare and promising mineral was plucked from space by a NASA satellite. 08.21.2008

How Much Can You Learn From a Home DNA Test?

One reporter has her DNA analyzed and finds that genetic testing isn't an exact science. 08.20.2008

The History of Humans, Written in One Person's DNA

One reporter's genetic test hints at how people colonized the entire world. 08.20.2008