Science as a human endeavor
Stem cell therapy: When will it help the heart?
Heart muscle is never replaced if it dies in a heart attack. Muscle cells grown from stem cells can briefly help broken hearts. Could More
To play, and therefore to mate
Are we affecting the character of future generations by the way we choose mates? If choosing attractive mates tends to make the More
Climate: Simple = beautiful?
Earth’s orbit subtly changes over thousands of years, in complex cycles that affect the timing and delivery of sunlight to various More
Brewing: Doing what comes naturally
People have been controlling fermentation for at least 9,000 years. What did the ancients brew? How did fermenting change society? More
Fraud happens. In a 2009 survey, 2 percent of scientists admitted faking data; 14 percent said colleagues have done it. Problems worst More
Pacific migrations: New evidence on ancient human voyages
A stone tool discovered in Polynesia came from Hawaii — 2500 miles away. Whoa! More
Scrapping Science: Do Facts Really Matter?
Obama: “…promoting science isn’t just about providing resources—it’s about protecting free and open inquiry. More
India’s Red Rain: Aliens or Hype?
Did red rain in India carry alien bacteria? One Indian scientist thinks so. Others say it was just spores of a common alga. More
Long-Distance Prayer Fails Trial
People pray for the health of friends and family. Can science prove these prayers work? Should it try? More
Space Travel: Humans vs. Robots
Bush proposes mission to moon and Mars, but how great are the scientific payoffs of this expensive, risky adventure? More
This Why File surveys the latest in forensic anthropology and a visit with a Forensic Anthropology Center in Tennessee. More
Nobel Prize for Medicine or Physiology given to inventors of MRI machine — but were these guys really the inventors? More
Nuclear Wizard Dies
Edward Teller helped invent the hydrogen bomb, then pushed missile defense. He changed the 20th century. More
Biological Weapons: Too Tricky to Use?
Will terrorists use biological weapons? How have bio-weapons been used in the past? More