ScienceDaily: Top Science News |
- Planet ‘devoured in secret’ by its own sun
- Mars formed from similar building blocks to that of Earth, reveals study of Martian meteorites
- Failed explosions explain most peculiar supernovae
- Astronomers pin down origins of 'mile markers' for expansion and acceleration of universe
- After 121 years, identification of 'grave robber' fossil solves a paleontological enigma
- Happy youngsters more likely to grow into wealthy adults, study finds
- 'Different kind of stem cell' possesses attributes favoring regenerative medicine
- Evidence of a 'mid-life crisis' in great apes
- Super-efficient solar-energy technology: ‘Solar steam’ so effective it can make steam from icy cold water
- Astrophysicists identify a 'super-Jupiter' around massive star
- Human brain, Internet, and cosmology: Similar laws at work?
- 3-D light switch for the brain: Device may help treat Parkinson's, epilepsy; aid understanding of consciousness
- Invisibility cloaking to shield floating objects from waves
- Mosquitos fail at flight in heavy fog, though heavy rain doesn't faze them
- BaBar experiment confirms time asymmetry: Time's quantum arrow has a preferred direction, new analysis shows
| Planet ‘devoured in secret’ by its own sun Posted: 19 Nov 2012 06:31 PM PST A planet roughly 1.4 times the size of Jupiter is being consumed by its own star behind a shroud thanks to a magnesium veil absorbing all of certain light wavelengths, according to new observations. WASP-12 b, originally spotted in 2008, is a gas giant planet orbiting extremely close to its parent star. The distance between the star and planet is so small that the planet completes an orbit of its star in just over one Earth day. This proximity has "boiled off" a superheated gas cloud roughly three times the radius of Jupiter which feeds the star.  |
| Mars formed from similar building blocks to that of Earth, reveals study of Martian meteorites Posted: 19 Nov 2012 01:35 PM PST A team of scientists studied the hydrogen in water from the Martian interior and found that Mars formed from similar building blocks to that of Earth, but that there were differences in the later evolution of the two planets. This implies that terrestrial planets, including Earth, have similar water sources.  |
| Failed explosions explain most peculiar supernovae Posted: 19 Nov 2012 01:32 PM PST Supercomputer simulations have revealed that a type of oddly dim, exploding star is probably a class of duds—one that could nonetheless throw new light on the mysterious nature of dark energy.  |
| Astronomers pin down origins of 'mile markers' for expansion and acceleration of universe Posted: 19 Nov 2012 01:32 PM PST A study using a unique new instrument on the world's largest optical telescope has revealed the likely origins of especially bright supernovae that astronomers use as easy-to-spot "mile markers" to measure the expansion and acceleration of the universe.  |
| After 121 years, identification of 'grave robber' fossil solves a paleontological enigma Posted: 19 Nov 2012 12:13 PM PST Researchers have resolved the evolutionary relationships of Necrolestes patagonensis, a paleontological riddle for more than 100 years. Researchers have correctly placed the strange 16-million-year-old Necrolestes in the mammal evolutionary tree, unexpectedly moving forward the endpoint for the fossil's evolutionary lineage by 45 million years and showing that this family of mammals survived the extinction event that marked the end of the Age of Dinosaurs.  |
| Happy youngsters more likely to grow into wealthy adults, study finds Posted: 19 Nov 2012 12:13 PM PST The first in-depth investigation of whether youthful happiness leads to greater wealth in later life reveals that, even allowing for other influences, happy adolescents are likely to earn more money as adults.  |
| 'Different kind of stem cell' possesses attributes favoring regenerative medicine Posted: 19 Nov 2012 12:13 PM PST New and powerful cells first created in the laboratory a year ago constitute a new stem-like state of adult epithelial cells with attributes that may make regenerative medicine truly possible. Researchers report that these new stem-like cells do not express the same genes as embryonic stem cells and induced pluripotent stem cells (iPSCs) do. That explains why they don't produce tumors when they grow in the laboratory, as the other stem cells do, and why they are stable, producing the kind of cells researchers want them to.  |
| Evidence of a 'mid-life crisis' in great apes Posted: 19 Nov 2012 12:13 PM PST Chimpanzees and orangutans can experience a mid-life crisis just like humans, a study suggests.  |
| Posted: 19 Nov 2012 11:06 AM PST Scientists have unveiled a revolutionary new technology that uses nanoparticles to convert solar energy directly into steam. The new "solar steam" method is so effective it can even produce steam from icy cold water. The technology's inventors said they expect it will first be used in sanitation and water-purification applications in the developing world.  |
| Astrophysicists identify a 'super-Jupiter' around massive star Posted: 19 Nov 2012 11:06 AM PST Astrophysicists have discovered a 'super-Jupiter' around the massive star Kappa Andromedae. It represents the first new imaged exoplanet system in almost four years, has a mass about 13 times that of Jupiter and an orbit somewhat larger than Neptune's. The star around which the planet orbits has a mass 2.5 times that of the Sun, making it the highest mass star to ever host a directly observed planet.  |
| Human brain, Internet, and cosmology: Similar laws at work? Posted: 19 Nov 2012 11:05 AM PST The structure of the universe and the laws that govern its growth may be more similar than previously thought to the structure and growth of the human brain and other complex networks, such as the Internet or a social network of trust relationships between people, according to a new article.  |
| Posted: 19 Nov 2012 08:42 AM PST A new tool for neuroscientists delivers a thousand pinpricks of light to individual neurons in the brain. The new 3-D "light switch", created by biologists and engineers, could one day be used as a neural prosthesis that could treat conditions such as Parkinson's and epilepsy by using gene therapy to turn individual brain cells on and off with light.  |
| Invisibility cloaking to shield floating objects from waves Posted: 19 Nov 2012 07:45 AM PST A new approach to invisibility cloaking may one day be used at sea to shield floating objects – such as oil rigs and ships – from rough waves. Unlike most other cloaking techniques that rely on transformation optics, this one is based on the influence of the ocean floor's topography on the various "layers" of ocean water. At the American Physical Society's (APS) Division of Fluid Dynamics (DFD) meeting, being held November 18-20, 2012, in San Diego, Calif., Reza Alam, assistant professor of mechanical engineering at the University of California, Berkeley, will describe how the variation of density in ocean water can be used to cloak floating objects against incident surface waves.  |
| Mosquitos fail at flight in heavy fog, though heavy rain doesn't faze them Posted: 19 Nov 2012 07:45 AM PST Mosquitos have the remarkable ability to fly in clear skies as well as in rain, shrugging off impacts from raindrops more than 50 times their body mass. But just like modern aircraft, mosquitos also are grounded when the fog thickens.  |
| Posted: 19 Nov 2012 06:46 AM PST Digging through nearly 10 years of data from billions of BaBar particle collisions, researchers found that certain particle types change into one another much more often in one way than they do in the other, a violation of time reversal symmetry and confirmation that some subatomic processes have a preferred direction of time.  |
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