May 22, 2013 — While studying microorganisms on humans is not new, tracking fungi is. In a census of sorts, scientists checked the skin of healthy volunteers. They found an expansive ecosystem of silent inhabitants.
May 21, 2013 — Engineers have figured out a way to get crystals to form rose and tulip sculptures, each smaller than a strand of hair. The gardens sprout up on a penny dipped in a salt solution. The technique is similar to 3-D printing and could one day be used to make any complex shape.
May 16, 2013 — The news that scientists have successfully cloned a human embryo seems almost certain to rekindle a political fight that has raged, on and off, since the creation of Dolly the sheep. It's a fight that has, over the past decade and a half, produced a lot of heat and light and not a lot of policy.
May 15, 2013 — After decades of trying, scientists say they've finally figured out how to make personalized embryonic stem cells. One day, these designer cells may help treat an array of diseases. A jolt of caffeine and and a little electric shock helped to do the trick.
May 15, 2013 — The achievement is a long-sought step toward harnessing the potential power of such cells to treat diseases. But the discovery raises ethical concerns because it brings researchers closer to cloning humans.
May 9, 2013 — Scientists used to think that identical twins turned out differently because they were treated differently by friends, teachers or their parents. A study of mice supports the idea that small changes in behavior can lead to larger ones and eventually even resculpt brains in different ways.
Apr 29, 2013 — People crave explanations that are simple, broad, elegant. But the prettiest, most satisfying explanations aren't always the best explanations, as the dark story of Dutch social psychologist Diederik Stapel makes clear.
Apr 26, 2013 — Scientists have deployed hundreds of tiny, experimental robots to help with biopsies. They're as small as a speck of dust. They look like tiny ninja throwing stars. And researchers use magnets to retrieve them.
Apr 26, 2013 — An oversight committee halted a big clinical study of an experimental HIV vaccine after a peek at preliminary results showed there was no way the study would be able show the vaccine works. More vaccinated people became infected with HIV than those who got placebo shots.
Apr 25, 2013 — When researchers turned on a gene for the hormone in the livers of diabetic lab mice, the number of insulin-making cells in their pancreas glands tripled within 10 days. Although the research was conducted in animals, the scientists say the findings could be relevant for humans.