ScienceDaily: Top Science News |
- Dead star warps light of companion red star, astronomers say
- Remote coral reefs can be tougher than they look: Western Australia’s Scott Reef has recovered from mass bleaching
- Discovery in neuroscience could help re-wire appetite control
- How life may have first emerged on Earth: Foldable proteins in a high-salt environment
- Pathogen's scissor-like enzyme provides new clues to treatment of infectious disease
| Dead star warps light of companion red star, astronomers say Posted: 05 Apr 2013 06:47 AM PDT Astronomers have observed the effects of a dead star bending the light of its companion red star. The findings are among the first detections of this effect -- a result predicted by Einstein's theory of general relativity -- in binary, or double, star systems. |
| Posted: 05 Apr 2013 06:45 AM PDT Isolated coral reefs can recover from catastrophic damage as effectively as those with nearby undisturbed neighbors, a long-term study by marine biologists has shown. Scott Reef, a remote coral system in the Indian Ocean, has largely recovered from a catastrophic mass bleaching event in 1998, according to the study. |
| Discovery in neuroscience could help re-wire appetite control Posted: 05 Apr 2013 03:42 AM PDT Researchers have made a discovery in neuroscience that could offer a long-lasting solution to eating disorders such as obesity. It was previously thought that the nerve cells in the brain associated with appetite regulation were generated entirely during an embryo's development in the womb and therefore their numbers were fixed for life. But new research has identified a population of stem cells capable of generating new appetite-regulating neurons in the brains of young and adult rodents. |
| How life may have first emerged on Earth: Foldable proteins in a high-salt environment Posted: 05 Apr 2013 03:40 AM PDT Scientists may be a step closer to understanding how life first emerged on Earth billions of years ago. Researchers have produced data supporting the idea that 10 amino acids believed to exist on Earth around 4 billion years ago were capable of forming foldable proteins in a high-salt (halophile) environment. Such proteins would have been capable of providing metabolic activity for the first living organisms to emerge on the planet between 3.5 and 3.9 billion years ago. |
| Pathogen's scissor-like enzyme provides new clues to treatment of infectious disease Posted: 04 Apr 2013 06:28 AM PDT Researchers report that a pathogen annually blamed for an estimated 90 million cases of food-borne illness defeats a host's immune response by using a fat-snipping enzyme to cut off cellular communication. |
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