ScienceDaily: Most Popular News |
- Earth's water is older than the sun: Likely originated as ices that formed in interstellar space
- Fossil of ancient multicellular life sets evolutionary timeline back 60 million years
- Bacterial 'communication system' could be used to stop, kill cancer cells, study finds
- Brain scans reveal 'gray matter' differences in media multitaskers
- Clear skies on exo-Neptune: Smallest exoplanet ever found to have water vapor
- Dying brain cells cue new brain cells to grow in songbird
- The origin of Uranus and Neptune elucidated
- Fruit and vegetable consumption could be as good for your mental as your physical health
- NASA's Newest Mars Mission Spacecraft Enters Orbit around Red Planet
- Scientists Confirm Folk Remedy Repels Mosquitoes
| Earth's water is older than the sun: Likely originated as ices that formed in interstellar space Posted: 25 Sep 2014 11:12 AM PDT Water was crucial to the rise of life on Earth and is also important to evaluating the possibility of life on other planets. Identifying the original source of Earth's water is key to understanding how life-fostering environments come into being and how likely they are to be found elsewhere. New work found that much of our solar system's water likely originated as ices that formed in interstellar space.  |
| Fossil of ancient multicellular life sets evolutionary timeline back 60 million years Posted: 24 Sep 2014 06:18 PM PDT Geobiologists shed new light on multicellular fossils from a time 60 million years before a vast growth spurt of life known as the Cambrian Explosion occurred on Earth.  |
| Bacterial 'communication system' could be used to stop, kill cancer cells, study finds Posted: 24 Sep 2014 11:50 AM PDT A molecule used as a communication system by bacteria can be manipulated to prevent cancer cells from spreading, a study has demonstrated. "During an infection, bacteria release molecules which allow them to 'talk' to each other," said the lead author of the study. "Depending on the type of molecule released, the signal will tell other bacteria to multiply, escape the immune system or even stop spreading."  |
| Brain scans reveal 'gray matter' differences in media multitaskers Posted: 24 Sep 2014 11:49 AM PDT Simultaneously using mobile phones, laptops and other media devices could be changing the structure of our brains, according to new research. People who frequently use several media devices at the same time have lower grey-matter density in one particular region of the brain compared to those who use just one device occasionally.  |
| Clear skies on exo-Neptune: Smallest exoplanet ever found to have water vapor Posted: 24 Sep 2014 10:50 AM PDT Astronomers have discovered clear skies and steamy water vapor on a planet outside our Solar System. The planet, known as HAT-P-11b, is about the size of Neptune, making it the smallest exoplanet ever on which water vapor has been detected.  |
| Dying brain cells cue new brain cells to grow in songbird Posted: 23 Sep 2014 03:20 PM PDT Using a songbird as a model, scientists have described a brain pathway that replaces cells that have been lost naturally and not because of injury. If scientists can further tap into the process, it might lead to ways to encourage replacement of cells in human brains that have lost neurons naturally because of aging or Alzheimer's disease.  |
| The origin of Uranus and Neptune elucidated Posted: 23 Sep 2014 07:15 AM PDT Astronomers have just proposed a solution to the problematic chemical composition of Uranus and Neptune, thus providing clues for understanding their formation. The researchers focused on the positioning of these two outermost planets of the Solar System, and propose a new model explaining how and where they formed.  |
| Fruit and vegetable consumption could be as good for your mental as your physical health Posted: 23 Sep 2014 05:59 AM PDT New research focused on mental wellbeing found that high and low mental wellbeing were consistently associated with an individual's fruit and vegetable consumption. 33.5% of respondents with high mental wellbeing ate five or more portions of fruit and vegetables a day, compared with only 6.8% who ate less than one portion.  |
| NASA's Newest Mars Mission Spacecraft Enters Orbit around Red Planet Posted: 22 Sep 2014 08:11 AM PDT NASA's Mars Atmosphere and Volatile Evolution (MAVEN) spacecraft successfully entered Mars' orbit at 7:24 p.m. PDT (10:24 p.m. EDT) Sunday, Sept. 21, where it now will prepare to study the Red Planet's upper atmosphere as never done before. MAVEN is the first spacecraft dedicated to exploring the tenuous upper atmosphere of Mars.  |
| Scientists Confirm Folk Remedy Repels Mosquitoes Posted: 03 Jul 2006 06:19 AM PDT Swatting mosquitoes and dodging other biting bugs is nearly a year-round chore in the Southeast, but such pests are swarming across the country with the advent of summer weather. A traditional folk remedy, known among people in Mississippi's hill country for at least a century, may provide some relief without all the worries of DEET and other harsh chemicals.  |
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