ScienceDaily: Top Science News |
- Astronomers image lowest-mass exoplanet around a sun-like star
- New explanation for odd double-layer Martian craters
- Could discovery lead to end of sunburn pain?
- Disappearance of coral reefs, drastically altered marine food web on the horizon
- Making a mini Mona Lisa: Nanotechnique creates image on surface less than a third the hair's width
- Questions answered with the pupils of your eyes
| Astronomers image lowest-mass exoplanet around a sun-like star Posted: 05 Aug 2013 01:36 PM PDT Using infrared data from the Subaru Telescope in Hawaii, an international team of astronomers has imaged a giant planet around the bright star GJ 504. Several times the mass of Jupiter and similar in size, the new world, dubbed GJ 504b, is the lowest-mass planet ever detected around a star like the sun using direct imaging techniques.  |
| New explanation for odd double-layer Martian craters Posted: 05 Aug 2013 12:25 PM PDT The surface of Mars it pocked by more than 600 "double-layered ejecta" DLE craters, but how these odd craters formed has been a mystery. A new study makes the case that glacial ice, possibly tens of meters thick at the time of impacts millions of years ago, may be responsible for the unique features of DLEs.  |
| Could discovery lead to end of sunburn pain? Posted: 05 Aug 2013 12:24 PM PDT The painful, red skin that comes from too much time in the sun is caused by a molecule abundant in the skin's epidermis, a new study shows. Blocking this molecule, called TRPV4, greatly protects against the painful effects of sunburn. The research, which was conducted in mouse models and human skin samples, could yield a way to combat sunburn and possibly several other causes of pain.  |
| Disappearance of coral reefs, drastically altered marine food web on the horizon Posted: 05 Aug 2013 10:36 AM PDT If history's closest analog is any indication, the look of the oceans will change drastically in the future as the coming greenhouse world alters marine food webs and gives certain species advantages over others.  |
| Making a mini Mona Lisa: Nanotechnique creates image on surface less than a third the hair's width Posted: 05 Aug 2013 10:11 AM PDT Scientists have "painted" the Mona Lisa on a substrate surface approximately 30 microns in width -- or one-third the width of a human hair. The team's creation, the "Mini Lisa," demonstrates a technique that could potentially be used to achieve nanomanufacturing of devices because the team was able to vary the surface concentration of molecules on such short-length scales.  |
| Questions answered with the pupils of your eyes Posted: 05 Aug 2013 10:10 AM PDT Patients who are otherwise completely unable to communicate can answer yes or no questions within seconds with the help of a simple system -- consisting of just a laptop and camera -- that measures nothing but the size of their pupils. The tool takes advantage of changes in pupil size that naturally occur when people do mental arithmetic. It requires no specialized equipment or training at all.  |
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