Uncategorized
- Genetics
Mutations that drive cancer lurk in healthy skin
Healthy tissue carries mutations that drive cancer, samples of normal skin cells show.
- Neuroscience
Brain implants let paralyzed man move robotic arm
Implanting tiny silicon chips in the action-planning part of a paralyzed man’s brain let him smoothly control a robotic limb with his thoughts.
- Genetics
Ancient DNA pushes back timing of the origin of dogs
DNA extracted from the fossil of an ancient wolf indicates dogs and wolves diverged longer ago than previously thought.
- Animals
Octopuses can ‘see’ with their skin
Eyes aren’t the only cephalopod body parts with light-catching molecules.
- Materials Science
Like a balloon, peculiar magnet grows and shrinks
A recently discovered alloy of iron and gallium can expand and contract like a balloon when exposed to a magnetic field.
- Archaeology
Earliest known stone tools unearthed in Kenya
East African discoveries suggest stone-tool making started at least 3.3 million years ago.
- Astronomy
Peeks into early life of supernovas show how to blow up a star
Multiple supernovas show off some of the ways a star can explode.
- Science & Society
Gene therapy, Gattaca-style, poses ethical issues
Gene therapy becomes more sophisticated, and the debate over the ethics of DNA tinkering grows.
- Paleontology
Suds versus nanoparticles and more reader feedback
Readers discuss the posture of an ancient reptile and why washing machines and nanoparticles don't mix.
- Health & Medicine
Snagging blood clots upgrades stroke care
A new device threaded up to the brain via catheter can unblock vessels in cerebral arteries, studies show.
- Planetary Science
Sea salt may stripe Europa’s surface
Salt deposits on Jupiter’s moon Europa might be responsible for brown stripes on the icy satellite’s surface.
- Animals
Pandas’ gut bacteria resemble carnivores’
Unlike other vegetarians, the bamboo eaters lack plant-digesting microbes.
