ScienceDaily: Top Science News |
- Discovery of new Tiktaalik roseae fossils reveals key link in evolution of hind limbs
- 'Hand of God': Dead star and distant black holes dazzle in X-rays
- Solving a 40-year-old mystery, researchers find new route for better brain disorder treatments
| Discovery of new Tiktaalik roseae fossils reveals key link in evolution of hind limbs Posted: 13 Jan 2014 12:42 PM PST The discovery of well-preserved pelves and a partial pelvic fin from Tiktaalik roseae, a 375 million-year-old transitional species between fish and the first legged animals, reveals that the evolution of hind legs actually began as enhanced hind fins. This challenges existing theory that large, mobile hind appendages were developed only after vertebrates transitioned to land. |
| 'Hand of God': Dead star and distant black holes dazzle in X-rays Posted: 13 Jan 2014 09:58 AM PST Two new views from NASA's Nuclear Spectroscopic Telescope Array, or NuSTAR, showcase the telescope's talent for spying objects near and far. One image shows the energized remains of a dead star, a structure nicknamed the "Hand of God" after its resemblance to a hand. Another image shows distant black holes buried in blankets of dust. |
| Solving a 40-year-old mystery, researchers find new route for better brain disorder treatments Posted: 13 Jan 2014 07:02 AM PST Scientists have discovered how salt acts as a key regulator for drugs used to treat a variety of brain diseases including chronic pain, Parkinson's disease, and depression. |
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