ScienceDaily: Top Science News |
- Biplane to break the sound barrier: Cheaper, quieter and fuel-efficient biplanes could put supersonic travel on the horizon
- Experients may force revision of astrophysical models of the universe
- Geologic map of Jupiter's moon Io details an otherworldly volcanic surface
- Cosmic rays alter chemistry of lunar ice, may create building blocks of life
- Genetic variation in human gut viruses could be raw material for inner evolution
- Global sea level likely to rise as much as 70 feet for future generations
- Some orbits more popular than others in solar systems
- Smell is a symphony: New model for how the brain is organized to process odor information
- Hazy shades of life on early Earth
- How a single gene mutation leads to uncontrolled obesity
| Posted: 19 Mar 2012 01:38 PM PDT A researcher has come up with a concept that may solve many of the problems that grounded the Concorde. An assistant professor of aeronautics and astronautics, says the solution, in principle, is simple: Instead of flying with one wing to a side, why not two? |
| Experients may force revision of astrophysical models of the universe Posted: 19 Mar 2012 12:11 PM PDT In a challenge to current astrophysical models of the universe, researchers have found that current estimates of the interiors of so-called ice giant planets within and without the solar system overstate water's compressibility by as much as 30 percent, forcing revisions in estimates of other elements. |
| Geologic map of Jupiter's moon Io details an otherworldly volcanic surface Posted: 19 Mar 2012 12:11 PM PDT More than 400 years after Galileo's discovery of Io, the innermost of Jupiter's largest moons, a team of scientists has produced the first complete global geologic map of the Jovian satellite. |
| Cosmic rays alter chemistry of lunar ice, may create building blocks of life Posted: 19 Mar 2012 10:52 AM PDT Space scientists report they have quantified levels of radiation on the moon's surface from galactic cosmic ray (GCR) bombardment that over time causes chemical changes in water ice and can create complex carbon chains similar to those that help form the foundations of biological structures. In addition, the radiation process causes the lunar soil, or regolith, to darken over time, which is important in understanding the geologic history of the moon. |
| Genetic variation in human gut viruses could be raw material for inner evolution Posted: 19 Mar 2012 10:42 AM PDT A growing body of evidence underscores the importance of human gut bacteria in modulating human health, metabolism, and disease. Yet bacteria are only part of the story. Viruses that infect those bacteria also shape who we are. A new study sequenced the DNA of viruses -- the virome -- present in the gut of healthy people. |
| Global sea level likely to rise as much as 70 feet for future generations Posted: 19 Mar 2012 10:42 AM PDT Even if humankind manages to limit global warming to 2 degrees C (3.6 degrees F), as the Intergovernmental Panel on Climate Change recommends, future generations will have to deal with sea levels 12 to 22 meters (40 to 70 feet) higher than at present, according to new research. |
| Some orbits more popular than others in solar systems Posted: 19 Mar 2012 08:16 AM PDT Computer simulations have revealed a plausible explanation for a phenomenon that has puzzled astronomers: Rather than occupying orbits at regular distances from a star, giant gas planets similar to Jupiter and Saturn appear to prefer to occupy certain regions in mature solar systems while staying clear of others. |
| Smell is a symphony: New model for how the brain is organized to process odor information Posted: 19 Mar 2012 06:43 AM PDT Just like a road atlas faithfully maps real-word locations, our brain maps many aspects of our physical world: Sensory inputs from our fingers are mapped next to each other in the somatosensory cortex; the auditory system is organized by sound frequency. The olfactory system was believed to map similarly, where groups of chemically related odorants - amines, ketones, or esters, for example - register with clusters of cells that are laid out next to each other. |
| Hazy shades of life on early Earth Posted: 18 Mar 2012 11:39 AM PDT When microbes ruled the world -- new research provides evidence of the key role played by microorganisms in the creation of our atmosphere and the development of complex life on Earth. |
| How a single gene mutation leads to uncontrolled obesity Posted: 18 Mar 2012 11:39 AM PDT Researchers have revealed how a mutation in a single gene is responsible for the inability of neurons to effectively pass along appetite suppressing signals from the body to the right place in the brain. What results is obesity caused by a voracious appetite. |
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