6,165 results
- Life
View to a cell
In 2013, Science News published a photo essay highlighting advances in microscopy that illuminate life within us, work that has now earned three researchers the 2014 Nobel Prize in chemistry.
- Psychology
Light found in cocaine addiction tunnel
Using lasers, scientists target a sluggish set of neurons in rats to ease drug compulsion.
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BOOK REVIEW: Rabid: A Cultural History of the World’s Most Diabolical Virus by Bill Wasik and Monica Murphy
Review by Alexandra Witze.
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- Genetics
Genetic mutations may explain a brain cancer’s tenacity
DNA damage may transform adult cells in glioblastoma, making the malignancy harder to kill.
- Neuroscience
Nonstick trick in the brain
Getting drugs into the brain has proved to be a nanoscale puzzle: Anything bigger than 64 nanometers — about the size of a small virus — gets stuck in the space between brain cells once it gets through the blood-brain barrier. Justin Hanes of Johns Hopkins University School of Medicine and colleagues got around this rule by coating particles destined for brain cells in a dense layer of a polymer called polyethylene glycol.
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Evolving E. coli
25-year experiment sees real-time natural selection.
- Health & Medicine
Updated Pap smear detects ovarian, uterine cancers
Adding a genetic analysis to the procedure reveals mutations specific to the two malignancies.
- Health & Medicine
19th International AIDS Conference
Highlights from the AIDS meeting, July 22-27, Washington, D.C.
- Health & Medicine
19th International AIDS Conference
Highlights from the AIDS meeting, July 22-27, Washington, D.C.
- Humans
U.S. team breaks through subglacial lake
Testing should continue for a day or more, probing for life in the Antarctic depths.
- Tech
Antarctic test of novel ice drill poised to begin
Any day now, a team of 40 scientists and support personnel expects to begin using a warm, high pressure jet of water to bore a 30 centimeter hole through 83 meters of ice. Once it breaks through to the sea below, they’ll have a few days to quickly sample life from water before the hole begins freezing up again. It's just a test. But if all goes well, in a few weeks the team will move 700 miles and bore an even deeper hole to sample for freshwater life that may have been living for eons outside even indirect contact with Earth’s atmosphere.
