ScienceDaily: Top Science News

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• Grapefruit juice stems weight gain in mice fed a high-fat diet, study finds
• Amputees discern familiar sensations across prosthetic hand
• Mind-controlled prosthetic arms that work in daily life are now a reality
• Astronomers see right into heart of exploding star
• Impossibly bright dead star: X-ray source in the Cigar Galaxy is the first ultraluminous pulsar ever detected
• Dynamic motion of HIV as it readies an attack: Seen in real time, for the first time
• Hungry black hole eats faster than thought possible
• Fusion reactor concept could be cheaper than coal
• Antarctic sea ice reaches new record maximum
• 2014 Nobel Prize in Chemistry: Super-resolved fluorescence microscopy
• How dinosaurs divided their meals at the Jurassic dinner table

Grapefruit juice stems weight gain in mice fed a high-fat diet, study finds Posted: 08 Oct 2014 12:36 PM PDT Mice fed a high-fat diet gained 18 percent less weight when they drank clarified, no-pulp grapefruit juice compared with a control group of mice that drank water, a new study demonstrated. Juice-drinking mice also showed improved levels of glucose, insulin and a type of fat called triacylglycerol compared with their water-drinking counterparts.

Amputees discern familiar sensations across prosthetic hand Posted: 08 Oct 2014 12:36 PM PDT Patients connected to a new prosthetic system said they 'felt' their hands for the first time since they lost them in accidents. In the ensuing months, they began feeling sensations that were familiar and were able to control their prosthetic hands with more -- well -- dexterity.

Mind-controlled prosthetic arms that work in daily life are now a reality Posted: 08 Oct 2014 12:36 PM PDT For the first time, robotic prostheses controlled via implanted neuromuscular interfaces have become a clinical reality. A novel osseointegrated (bone-anchored) implant system gives patients new opportunities in their daily life and professional activities.

Astronomers see right into heart of exploding star Posted: 08 Oct 2014 11:11 AM PDT Astronomers have been able to see into the heart of an exploding star, by combining data from telescopes that are hundreds or even thousands of kilometers apart.

Impossibly bright dead star: X-ray source in the Cigar Galaxy is the first ultraluminous pulsar ever detected Posted: 08 Oct 2014 10:34 AM PDT Astronomers working with NASA's Nuclear Spectroscopic Telescope Array (NuSTAR) have found a pulsating dead star beaming with the energy of about 10 million suns. The object, previously thought to be a black hole because it is so powerful, is in fact a pulsar -- the incredibly dense rotating remains of a star.

Dynamic motion of HIV as it readies an attack: Seen in real time, for the first time Posted: 08 Oct 2014 10:14 AM PDT Technologies that allow investigators, for the first time, to watch what they call the 'dance' of HIV proteins on the virus' surface, which may contribute to how the virus infects human immune cells, have been developed by scientists. The new technology platform opens new possibilities for devising an approach to prevent HIV infection, note researchers

Hungry black hole eats faster than thought possible Posted: 08 Oct 2014 10:13 AM PDT Astronomers have discovered a black hole that is consuming gas from a nearby star 10 times faster than previously thought possible. The black hole -- known as P13 -- lies on the outskirts of the galaxy NGC7793 about 12 million light years from Earth and is ingesting a weight equivalent to 100 billion billion hot dogs every minute.

Fusion reactor concept could be cheaper than coal Posted: 08 Oct 2014 10:11 AM PDT Engineers have designed a concept for a fusion reactor that, when scaled up to the size of a large electrical power plant, would rival costs for a new coal-fired plant with similar electrical output.

Antarctic sea ice reaches new record maximum Posted: 08 Oct 2014 09:21 AM PDT Sea ice surrounding Antarctica reached a new record high extent this year, covering more of the southern oceans than it has since scientists began a long-term satellite record to map the extent in the late 1970s.

2014 Nobel Prize in Chemistry: Super-resolved fluorescence microscopy Posted: 08 Oct 2014 05:54 AM PDT The 2014 Nobel Prize in Chemistry has been awarded to Eric Betzig of Janelia Farm Research Campus, Howard Hughes Medical Institute; Stefan W. Hell of Max Planck Institute for Biophysical Chemistry and the German Cancer Research Center; and William E. Moerner of Stanford University "for the development of super-resolved fluorescence microscopy."

How dinosaurs divided their meals at the Jurassic dinner table Posted: 07 Oct 2014 06:29 PM PDT How the largest animals to have ever walked on Earth fed, and how this allowed them to live alongside one another in prehistoric ecosystems, is the subject of new research.

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