Future Amnesia
Some patients with amnesia not only can't remember the past, but they can't imagine the future.
The Vestigial Appendix
A listener asks: Does the appendix have a purpose?
Mars Life
An astrobiologist posits that we haven't found life on Mars because we haven't been looking for the right thing.
Solar Roundup
Despite not having been washed for billions of years, nature stays relatively clean. How?
Squirrel v. Spruce
Seeds are the prize in an epic evolutionary struggle.
Cell Phones and Health
A listener asks: What's the effect of wireless devices on our health?
Subliminal Distractions
The most insidious distractions may be the ones we're not aware of.
Rich and Happy Roundup
Your state of mind can help you fight off a cold.
Air Bacteria Census
Scientists are taking stock of all the bacteria that live in the air.
Blood Donor Bonus
Giving blood can make you feel good about yourself. But could it be good for you, too?
Blocking Mad Cow
Genetically engineered cows lack the protein that causes Mad Cow Disease.
Assembling Life
A new technique may help scientists find out more about how life on Earth began.
Atmospheric Laser
A new technique will help scientists keep tabs on the recovering ozone.
Cannibal Blood Cells
Cannibalism is a big no-no for people. But it's a yes-yes for some blood cells.
Obesity Pathway
Insights into the genetics of obesity could lead to new drugs.
Ultrasound Stethoscope
A new stethoscope works in very noisy places and could help medics on the battlefield.
Antique Roundup
Both a sky calculator from ancient Greece and steel from the ancient Middle East used some pretty advanced technologies.