ScienceDaily: Latest Science News |
- NASA's Dawn spacecraft enters orbit around asteroid Vesta
- Comet Hartley 2 leaves a bumpy trail
- 'Love your body' to lose weight
- An unexpected actor in vaccination: Our own DNA
- Early talking doll recording discovered
- What keeps Earth cooking?
- Monitoring cellular interactions at nano-scale in more detail than ever before
- Compound to block signaling of cancer-causing protein developed
- Newer techniques are making cardiac CT safer for children
| NASA's Dawn spacecraft enters orbit around asteroid Vesta Posted: 17 Jul 2011 09:18 PM PDT NASA's Dawn spacecraft is now the first probe ever to enter orbit around an object in the main asteroid belt between Mars and Jupiter. Dawn will study the asteroid, named Vesta, for a year before departing for a second destination, a dwarf planet named Ceres, in July 2012. Observations will provide unprecedented data to help scientists understand the earliest chapter of our solar system. The data also will help pave the way for future human space missions. |
| Comet Hartley 2 leaves a bumpy trail Posted: 17 Jul 2011 09:13 PM PDT New findings from NEOWISE, the asteroid- and comet-hunting portion of NASA's Wide-field Infrared Survey Explorer mission, show that comet Hartley 2 leaves a pebbly trail as it laps the sun, dotted with grains as big as golf balls. |
| 'Love your body' to lose weight Posted: 17 Jul 2011 05:49 PM PDT Almost a quarter of men and women in England and over a third of adults in America are obese. Obesity increases the risk of diabetes and heart disease and can significantly shorten a person's life expectancy. New research shows that improving body image can enhance the effectiveness of weight loss programs based on diet and exercise. |
| An unexpected actor in vaccination: Our own DNA Posted: 17 Jul 2011 05:49 PM PDT Scientists have discovered an unexpected mode of action for the vaccine adjuvant alum. When a vaccine containing alum is injected, contact with alum apparently pushes certain cells of the body to release their own DNA. The presence of this DNA outside the cells, a place where it is not to be found in normal conditions, thus acts as a stimulant of the immune system and strongly boosts the response to the vaccine. |
| Early talking doll recording discovered Posted: 17 Jul 2011 12:04 PM PDT Scientists recently recovered sound from an artifact that historians believe is the earliest surviving talking doll record. The artifact is a ring-shaped cylinder phonograph record made of solid metal, preserved by the National Park Service at Thomas Edison National Historical Park. Phonograph inventor Thomas Edison made the record during the fall or winter of 1888 in West Orange, New Jersey. |
| Posted: 17 Jul 2011 10:48 AM PDT From core to surface, a constant flow of trillions of watts of heat enables Earth's magnetic field, spreads the sea floors, and keeps continents on the move. Much of it comes from the radioactive decay of elements in the crust and mantle, but how much? By measuring neutrinos from deep in the Earth, scientists have made the most precise estimate yet of radiogenic heat. |
| Monitoring cellular interactions at nano-scale in more detail than ever before Posted: 17 Jul 2011 10:48 AM PDT Using nanotechnology to engineer sensors onto the surface of cells, researchers have developed a platform technology for monitoring single-cell interactions in real-time. |
| Compound to block signaling of cancer-causing protein developed Posted: 17 Jul 2011 10:48 AM PDT Researchers have developed a compound that blocks signaling from a protein implicated in many types of cancer. |
| Newer techniques are making cardiac CT safer for children Posted: 17 Jul 2011 09:23 AM PDT Coronary computed tomography angiography (CTA) has excellent image quality and diagnostic confidence for the entire spectrum of pediatric patients, with significant reduction of risk with recent technological advancements, according to a new study. |
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