ScienceDaily: Top Science News |
- First evidence discovered of planet's destruction by its star
- Lao skull earliest example of modern human fossil in Southeast Asia
- Sex and the female brain: Protein in semen acts on female brain to prompt ovulation
- Cloud brightening to control global warming? Geoengineers propose an experiment
- Psychologists link emotion to vividness of perception and creation of vivid memories
- Scientists shed light on glowing materials
- Imprisoned molecules 'quantum rattle' in their cages
- Neural interface for hand prosthesis can restore function in brain areas responsible for motor control
- Big Bang theory challenged by big chill
- Why aren't there more stars?
- Rover's laser instrument zaps first Martian rock
| First evidence discovered of planet's destruction by its star Posted: 20 Aug 2012 02:07 PM PDT The first evidence of a planet's destruction by its aging star has been discovered by an international team of astronomers. A similar fate may await the Earth and other inner planets in our solar system, when the sun expands all the way out to Earth's orbit some five-billion years from now.  |
| Lao skull earliest example of modern human fossil in Southeast Asia Posted: 20 Aug 2012 12:22 PM PDT An ancient skull recovered from a cave in the Annamite mountains in northern Laos is the oldest modern human fossil found in Southeast Asia, researchers report. The discovery pushes back the clock on modern human migration through the region by as much as 20,000 years, and indicates that ancient wanderers out of Africa left the coast and inhabited diverse habitats much earlier than previously appreciated.  |
| Sex and the female brain: Protein in semen acts on female brain to prompt ovulation Posted: 20 Aug 2012 12:21 PM PDT Scientists have discovered that a protein in semen acts on the female brain to prompt ovulation, and is the same molecule that regulates the growth, maintenance, and survival of nerve cells.  |
| Cloud brightening to control global warming? Geoengineers propose an experiment Posted: 20 Aug 2012 10:23 AM PDT A scientist has proposed an experiment to test cloud brightening, a geoengineering concept that alters clouds in an effort to counter global warming. His proposed experiment is part of a larger paper detailing the latest thinking on cloud brightening.  |
| Psychologists link emotion to vividness of perception and creation of vivid memories Posted: 20 Aug 2012 10:23 AM PDT Have you ever wondered why you can remember things from long ago as if they happened yesterday, yet sometimes can't recall what you ate for dinner last night? According to a new study, it's because how much something means to you actually influences how you see it as well as how vividly you can recall it later.  |
| Scientists shed light on glowing materials Posted: 20 Aug 2012 09:11 AM PDT Researchers have succeeded in mapping how light behaves in complex photonic materials inspired by nature, like iridescent butterfly wings. Scientists have broken the limit of light resolution at the nanoscale and delivered a fundamental insight into how light and matter interact, which could lead to the development of enhanced bio-sensors for healthcare and more efficient solar cells and displays.  |
| Imprisoned molecules 'quantum rattle' in their cages Posted: 20 Aug 2012 08:41 AM PDT Scientists have discovered that a space inside a special type of carbon molecule can be used to imprison other smaller molecules such as hydrogen or water.  |
| Posted: 20 Aug 2012 08:40 AM PDT Amputation disrupts not only the peripheral nervous system but also central structures of the brain. While the brain is able to adapt and compensate for injury in certain conditions, in amputees the traumatic event prevents adaptive cortical changes. A group of scientists reports adaptive plastic changes in an amputee's brain following implantation of multielectrode arrays inside peripheral nerves.  |
| Big Bang theory challenged by big chill Posted: 20 Aug 2012 08:09 AM PDT The start of the Universe should be modeled not as a Big Bang but more like water freezing into ice, according to a team of theoretical physicists.  |
| Posted: 20 Aug 2012 08:07 AM PDT Astronomers may have found the answer to a universal question: Why aren't there more stars?  |
| Rover's laser instrument zaps first Martian rock Posted: 19 Aug 2012 01:52 PM PDT NASA's Mars rover Curiosity fired its laser for the first time on Mars, using the beam from a science instrument to interrogate a fist-size rock called "Coronation." The mission's Chemistry and Camera instrument, or ChemCam, hit the fist-sized rock with 30 pulses of its laser during a 10-second period. Each pulse delivers more than a million watts of power for about five one-billionths of a second.  |
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