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Ask the Experts 8/31/10
What Are Bedbugs? Are They Dangerous? [Re-post]
The blood-sucking insects are the bane of most city dwellers, but one entomologist proudly keeps a colony at the American Museum of Natural History. Is there any way for the rest of us to steer clear of them?

Ask the Experts 8/12/10
Will the Perseid Meteor Shower Ever Run Dry?
Earth's annual passage through the debris stream left by Comet Swift-Tuttle is not likely to make a dent in the meteor shower's intensity anytime soon
Ask the Experts 7/29/10
How Can You Control Your Dreams?
The ability to manipulate our dream worlds goes beyond the science fiction plot of the movie Inception. A dream expert from Harvard University explains how it works
Ask the Experts 7/23/10
How Does a Heat Wave Affect the Human Body?
Some might like it hot, but extreme heat can overpower the human body. An expert from the CDC explains how heat kills and why fans are worthless in the face of truly high temperatures
Ask the Experts 7/20/10
Are Everyday Consumer Products Making People Sick? A Q&A with Paul D. Blanc
Paul D. Blanc, a professor of medicine and author of How Everyday Products Make People Sick: Toxins at Home and in the Workplace, discusses how hazardous chemicals in consumer products affect human health

Ask the Experts 8/1/10
How does geothermal drilling trigger earthquakes?
Seismologist David Oppenheimer of the U.S. Geological Survey Earthquakes Hazards Team explains

Ask the Experts 6/25/10
Wrangling Renewables and the Smart Grid: How Can the Federal Government Change the Future of Electricity?
The commissioner of the federal agency responsible for electricity supply in the U.S. explains the ongoing transformation of the energy sector

Ask the Experts 5/6/10
How Important Is Physical Contact with Your Infant?
Touch and emotional engagement boost early childhood development, but can children recover from neglectful environments?

Ask the Experts 4/15/10
How Long Will Iceland's Volcano Keep Planes Grounded?
As the volcano in Iceland continues to erupt, travelers in Europe are left to wonder how long local airspace will remain closed. A volcanologist from the Smithsonian explains why this eruption could cause long-term disruption

Ask the Experts 4/6/10
What Is Geoengineering and Why Is It Considered a Climate Change Solution?
Some scientists are calling for more study of technological interventions to forestall catastrophic global warming. Why?

Ask the Experts 2/25/10
Why Would a Trained Orca Kill a Human?
After an experienced trainer was pulled in and killed by an orca at SeaWorld, a wildlife biologist who studies the species explains how a killer whale's natural behavior might help shed light on what happened

Ask the Experts 2/25/10
Where Will the U.S. Get Its Electricity in 2034?
Renewables and natural gas may dominate the generation of electricity during the next three decades

Ask the Experts 2/19/10
Going for the Gaunt: How Low Can an Athlete's Body Fat Go?
Olympic competitors such as Apolo Ohno are down near the 2 percent body-fat range. How do they get so lean, and is it wise to do so?

Ask the Experts 1/28/10
What Might Cause a Gas Pedal to Become Stuck?
Toyota, the world's largest automaker, has suspended sales of certain models and recalled millions of older ones as its engineers search for the elusive source of a sticky--and dangerous--accelerator problem

Ask the Experts 1/25/10
Ask the Experts: What Is Pompe Disease?
When a disease is rare, so is the funding for research to treat and cure it

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What's Next for AIDS: New Approaches for Tackling HIV in the Developing WorldThe surprise success this summer of a clinical trial on an antiretroviral-based vaginal microbicide provides new traction for efforts to combat AIDS in the developing world. Here are some new directions to expect for treatment and prevention of this widespread killer