ScienceDaily: Top Science News |
- NASA's Newest Mars Mission Spacecraft Enters Orbit around Red Planet
- Dry roasting could help trigger peanut allergy
- Smallest possible diamonds form ultra-thin nanothreads
- Engineered proteins stick like glue -- even in water
- Immune system of newborn babies stronger than previously thought
- Uncovering the forbidden side of molecules: Infrared spectrum of charged molecule seen for first time
- A breakthrough in electron microscopy: Scientists reconstruct third dimension from a single image
- Physicists teleport quantum state of photon to crystal over 25 kilometers
- On/off switch for aging cells discovered by scientists
| 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. |
| Dry roasting could help trigger peanut allergy Posted: 21 Sep 2014 07:36 PM PDT Dry roasted peanuts are more likely to trigger an allergy to peanuts than raw peanuts, suggests a study involving mice. The researchers say that specific chemical changes caused by the high temperatures of the dry roasting process are recognized by the body's immune system, 'priming' the body to set off an allergic immune response the next time it sees any peanuts. |
| Smallest possible diamonds form ultra-thin nanothreads Posted: 21 Sep 2014 11:51 AM PDT For the first time, scientists have discovered how to produce ultra-thin 'diamond nanothreads' that promise extraordinary properties, including strength and stiffness greater than that of today's strongest nanotubes and polymers. The threads have a structure that has never been seen before. |
| Engineered proteins stick like glue -- even in water Posted: 21 Sep 2014 11:51 AM PDT Researchers have found new adhesives based on mussel proteins could be useful for naval or medical applications. To create their new waterproof adhesives, researchers engineered bacteria to produce a hybrid material that incorporates naturally sticky mussel proteins as well as a bacterial protein found in biofilms -- slimy layers formed by bacteria growing on a surface. When combined, these proteins form even stronger underwater adhesives than those secreted by mussels. |
| Immune system of newborn babies stronger than previously thought Posted: 21 Sep 2014 11:51 AM PDT Contrary to what was previously thought, newborn immune T cells may have the ability to trigger an inflammatory response to bacteria, according to a new study. Although their immune system works very differently to that of adults, babies may still be able to mount a strong immune defense, finds the study. |
| Posted: 21 Sep 2014 11:50 AM PDT Researchers have succeeded in observing the "forbidden" infrared spectrum of a charged molecule for the first time. These extremely weak spectra offer perspectives for extremely precise measurements of molecular properties and may also contribute to the development of molecular clocks and quantum technology. |
| A breakthrough in electron microscopy: Scientists reconstruct third dimension from a single image Posted: 21 Sep 2014 11:50 AM PDT Imagine that you want to find out from a single picture taken of the front of a house, what the building looks like from behind, whether it has any extensions or if the brickwork is damaged, and how many rooms are in the basement. Sounds impossible? Not in the nanoworld. Scientists have developed a new method with which crystal structures can be reconstructed with atomic precision in all three dimensions. |
| Physicists teleport quantum state of photon to crystal over 25 kilometers Posted: 21 Sep 2014 11:50 AM PDT Physicists have succeeded in teleporting the quantum state of a photon to a crystal over 25 kilometers of optical fiber. The experiment constitutes a first, and simply pulverizes the previous record of 6 kilometers achieved ten years ago by the same team. Passing from light into matter, using teleportation of a photon to a crystal, shows that, in quantum physics, it is not the composition of a particle which is important, but rather its state, since this can exist and persist outside such extreme differences as those which distinguish light from matter. |
| On/off switch for aging cells discovered by scientists Posted: 20 Sep 2014 04:34 AM PDT An on-and-off "switch" has been discovered in cells that may hold the key to healthy aging. This switch points to a way to encourage healthy cells to keep dividing and generating, for example, new lung or liver tissue, even in old age. In our bodies, newly divided cells constantly. However, most human cells cannot divide indefinitely -– with each division, a cellular timekeeper at the ends of chromosomes shortens. When this timekeeper becomes too short, cells can no longer divide, causing organs and tissues to degenerate, as often happens in old age. But there is a way around this countdown, researchers have found. |
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