April 3, 2012 Everybody knows that there's just one moon orbiting the Earth. But a new study by a team of astronomers concludes that everybody is dead wrong about that. Minimoons, just a few feet across, make regular orbits around the planet. But they don't stick around very long — they're easily pulled away by the gravity of neighboring planets.
March 21, 2012 Joe Palca told his sister, a baker in Brooklyn, N.Y., about a way to make sourdough bread using "wild" yeast starter. But she had a problem: It was sourer than she liked. Was there any way to wrestle it back from its acrid extremes?
March 15, 2012 By changing its shape 1,000 times per second, the the Large Binocular Telescope cut through atmospheric turbulence and achieved the clearest pictures ever of distant celestial objects.
February 15, 2012 Once finished, the Large Synoptic Survey Telescope will capture over 800 images of every patch of the sky for an entire decade. The results, says one astronomer, will allow researchers to "answer fundamentally different questions about the universe."
February 11, 2012 Dengue fever, a nasty disease caused by a virus, is just beginning to show up in the U.S. It's carried from person to person by mosquitoes, and one researcher studying the spread is looking for clues in the age of the insects. But it's not very easy to tell how old a mosquito is.
January 27, 2012 Scratching an itchy ankle is more satisfying than relieving an itch on your back or arm. Even if you thought you knew that, scientists now have evidence to back up your hunch.
January 26, 2012 Astronomers want increasingly large telescopes to peer into the depths of space. To build a solid telescope mirror nearly 30 feet across, you need an oven that heats to 2,100 degrees Fahrenheit and spins around like a top.
January 2, 2012 Companies making genetically modified animals face a regulatory morass in this country. It's not always clear which federal agency has responsibility for regulating a particular animal, and even when one agency does take the lead, the approval process can drag on for years.
December 12, 2011 The long-running regulatory saga of a company's application to sell bioengineered salmon does not seem headed toward a conclusion.
November 26, 2011 Launched Saturday morning, the six-wheeled Mars Science Laboratory boasts a suite of high-tech instruments to study the planet's geology. It will land on the planet in August 2012, lowered gently to the surface on a cable by a rocket-powered helicopter.