Reports

Geothermal, solar thermal, and even nuclear power could provide alternatives to today's carbon-based fuel sources

What happened at the American Association for the Advancement of Science's 2009 meeting in Chicago-- from climate change to the search for life on other …

Just in time for Valentine's Day: Pheromones, romantic illusions, and staying green while demonstrating your feelings for your sweetheart

The evolution of the most powerful idea in science, originated by a man who was born in Shrewsbury, England, on February 12, 1809. Here's how …

More than 500 fell ill between September 2008 and January 2009, and as many as eight have died, thanks to contaminated peanut butter. Here's how …

An Australian wildfire has killed at least 135 people, and some experts are blaming global warming caused by greenhouse gas emissions for this and other …

The U.S.--and the world--is gearing up to build a potentially massive fleet of new nuclear reactors, in part to fight climate change. But can nuclear …

Pres. Obama began his term with a speech emphasizing alternative energy, health care and a focus on education. What's the future of stem cells and …

Netbooks, stars and cars: ScientificAmerican.com's Larry Greenemeier reports from the keynotes and convention floor at the 2009 Consumer Electronics Show in Las Vegas

If you've made shedding pounds a New Year's resolution, here's a guide to the research behind dieting and exercise

Science-related movies up for Oscars include The Curious Case of Benjamin Button, The Dark Knight, and Wall-E. But science has been part …

It was a first not only for NASA, but for humanity. As the world bore witness, a redesigned Apollo spacecraft, tested in space with a …

From greening your Christmas tree to what oil producers could learn from the story of Hanukkah, your guide to the science of the holiday season

As 2008 draws to a close, it's time to take a look back on the people, places and discoveries that shaped the world of science …

Food is scarce in the developing world, and prices are soaring in industrialized nations. Does science hold the key to the next green revolution?

Solutions to environmental problems ranging from carbon offsets to regrowing tropical rainforests--and whether nuclear power can contribute to the fight against global warming

On World AIDS Day, we look at the outcome of PEPFAR, President Bush's international AIDS program, the aftermath of a controversial HIV-prevention trial, and the …

The answers to all your questions about the big bird: Does turkey make you sleepy? What's the difference between white and dark meat? And, stories …

These winged mammals inspire fear, wonder, and even movies. How does their sonar work? And can we save species that are going extinct?

ScientificAmerican.com presents some of this year's most exciting high-tech toys as well as gadgets to make the planet greener and inventions designed to deliver the …

Both the North and South poles are undergoing unprecedented changes as a result of man-made climate change. What does this mean for the region's wildlife …

From Pompeii to Mount Pinatubo, volcanoes might have shaped Earth's surface, but also killed thousands. What makes magma burst from the ground as lava? Can …

Halloween conjures visions of ghosts, hauntings and many unexplained phenomena that play on our worst fears

Promising technologies to wean the world from fossil fuels, including offshore wind, solar, geothermal and hydrogen cars, among others