- - St. Patrick was born in Britain, stout may be good for your heart, and there's a shamrock shortage in 2010. Learn more in our roundup of St. Patrick's Day facts.
- - Auroras spring to life, the Milky Way enters middle age, a Mars moon gets its close-up, and more in the week's best space pictures.
- - An all-black king penguin—a very rare mutant—was spotted and filmed on the sub-Antarctic island of South Georgia. Video.
- - It was a tough egg to crack, but scientists have discovered that half-male, half-female chickens possess a mixture of genetically male and female cells.
- - An extra month of earlier mornings might be reducing use of artificial light, but other types of energy consumption more than offset the reduction, some studies suggest.
- - Scotland's head of state unveiled the largest challenge prize to date for spurring advances in marine renewable energy, part of a bid to combat climate change.
- - Sheets of flexible solar power cells have been "printed" using presses that normally churn out money—a technology that could help slash energy costs, experts say.
- - Step aside, corn: Another summertime picnic favorite might be the next big thing in ethanol production, a new study suggests.
- - Steven Chu spoke with National Geographic magazine about his goals for the next four years, which include quick improvements and long-term developments.
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- - Coming (maybe) to a hybrid near you: new technology that could help run a vehicle off the energy generated by bumps in the road.
- - The world's largest dead zone, the Black Sea, may be chock-full of future clean energy, a new study says.
- - Burning wood may seem backward, dirty, and environmentally hostile. But advanced power plants may hold great potential to save energy, cut costs, and even fight global warming.
- - Using diamonds and a laser, scientists crushed and heated methane produced from just water and minerals to create the same hydrocarbon blend found in natural gas.
- - From wind to sun to cow pies, rural regions are supplying more U.S. farmers with homegrown sources of renewable energy.
- - Using solar panels and biogas reactors, the nonprofit Solar CITIES project is bringing rural energy solutions to the urban poor in Egypt's largest city.
