Physicists have created the world’s smallest incandescent lamp using a filament made from a single carbon nanotube only 100 atoms wide. Invisible to the untrained eye, the filament appears as a tiny point of light when the lamp is turned on. Even with the best optical microscope it is only just possible to resolve the [...]
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Some genetic markers of influenza infection severity have been identified from past outbreaks. Researchers have failed to find most of these markers in samples of the current swine-flu strain.
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A species of slug produces a defensive gel it can chemically convert into a remarkably strong glue. Similar gel-based glues attach some snails firmly onto slippery rocks; tools are needed to pry them off. The tenacity of these glues on wet surfaces is difficult to match with artificial adhesives.
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A team of cancer researchers is focusing on a new model of the disease: the permissive microenvironment, or the metastatic niche, that forms in particular tissues located far from the primary tumor, well before full metastasis takes hold.
NASA will send a robotic scout, called the Lunar Reconnaissance Orbiter (LRO), to orbit the moon in 2009. LRO will gather crucial data on the lunar environment that will help astronauts prepare for long-duration lunar expeditions.
Children who can stay focused and don’t sweat the small stuff have a better shot at good health in adulthood — and this is especially true for girls, according to a new study.
Scientists have now pinpointed the exact gene responsible for a 2007 breakthrough in which mice with symptoms of Alzheimer’s disease regained long-term memories and the ability to learn.
Scientists have identified three genes that specifically mediate the metastasis, or spread, of breast cancer to the brain and illuminates the mechanisms by which this spread occurs.
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What is climate change doing to the saltiness, or salinity, of our oceans? This is an important question because big shifts in salinity could be a warning that more severe droughts and floods are on their way, or even that global warming is speeding up. Now, new research suggests that the amount of salt in [...]
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Infection with anal human papillomavirus, a virus that can cause anal and cervical cancers, is associated with a higher risk of new HIV infection in previously HIV-negative men who have sex with men, according to new research.
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