If you thought work on human cloning and embryonic stem cell research went out of style with the discovery of induced pluripotent stem cells, watch out. The pro-cloning people, who never lost their lust for toying with human embryos, are back.
Complaints about a new diagnostic manual show that psychiatry has a long way to go before being considered a legitimate science. That hope might never be fulfilled.
Some basic ideas about physics and astronomy remain so mysterious, and their explanations so flexible, they may lead some to question whether they should be called "hard sciences."
Left-leaning scientists have never given up on the 19th century notion that criminals are born, not made. Other evidence suggests "innate tendencies" can be overcome.
The search for extra-terrestrial intelligence is like a detective story without a body. All those new planets, but no signal—at least not one that most scientists will accept.
At Easter time, people recall the story of Peter denying Jesus three times before the rooster crowed. Some scientists tried to figure out what clicks the rooster's clock alarm.
Surely one of the great mysteries of human life is how a single fertilized egg cell grows to an adult, with a brain sporting hundreds of billions of functional connections supporting abstract thought.