ScienceDaily: Top Science News |
- Rocket-launched camera reveals highways and sparkles in the solar atmosphere
- El Nino unusually active in the late 20th century: Is it because of global warming?
- Different neuronal groups govern right-left alternation when walking
| Rocket-launched camera reveals highways and sparkles in the solar atmosphere Posted: 30 Jun 2013 07:52 PM PDT Using an innovative new camera on board a sounding rocket, an international team of scientists have captured the sharpest images yet of the Sun's outer atmosphere. The team discovered fast-track 'highways' and intriguing 'sparkles' that may help answer a long-standing solar mystery.  |
| El Nino unusually active in the late 20th century: Is it because of global warming? Posted: 30 Jun 2013 11:50 AM PDT Reliable prediction of El Nino response to global warming is difficult, as El Nino varies naturally over decades and centuries. Instrumental records are too short to determine whether recent changes are natural or attributable to increased greenhouse gases. An international team of scientists now show that recent El Nino activity is the highest for the past 700 years, possibly a response to global warming.  |
| Different neuronal groups govern right-left alternation when walking Posted: 30 Jun 2013 11:50 AM PDT Scientists have identified the neuronal circuits in the spinal cord of mice that control the ability to produce the alternating movements of the legs during walking. The study demonstrates that two genetically-defined groups of nerve cells are in control of limb alternation at different speeds of locomotion, and thus that the animals' gait is disturbed when these cell populations are missing.  |
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