ScienceDaily: Top Science News |
- Violent solar system history uncovered by WA meteorite
- Northern Pacific's tropical anoxic zone might shrink from climate change
- Hybrid-motor helps cells push their way through tissues
- Still hot inside the Moon: Tidal heating in the deepest part of the lunar mantle
- Stem cells show promise for stroke in pilot study
- White dwarfs crashing into neutron stars explain loneliest supernovae
- Wild sheep show benefits of putting up with parasites
| Violent solar system history uncovered by WA meteorite Posted: 08 Aug 2014 08:19 AM PDT Planetary scientists have shed some light on the bombardment history of our solar system by studying a unique volcanic meteorite recovered in Western Australia. Captured on camera seven years ago falling on the WA side of the Nullarbor Plain, the Bunburra Rockhole Meterorite has unique characteristics that suggest it came from a large asteroid that has never before been identified. |
| Northern Pacific's tropical anoxic zone might shrink from climate change Posted: 08 Aug 2014 08:19 AM PDT A commonly held belief that global warming will diminish oxygen concentrations in the ocean looks like it may not be entirely true. According to new research, just the opposite is likely the case in the eastern tropical northern Pacific, with its anoxic zone expected to shrink in coming decades because of climate change. |
| Hybrid-motor helps cells push their way through tissues Posted: 08 Aug 2014 08:07 AM PDT Research has uncovered how two cellular motors, previously thought to compete with each other, can actually work together to help cells squeezing through a crowded mass of cells. The study provides fresh understanding of how cells can combine accurate steering with a brute force mechanism in order to push through our body, essential when cells of our immune defense need to reach sites of inflammation, but detrimental during tumor metastasis or parasitic infection. |
| Still hot inside the Moon: Tidal heating in the deepest part of the lunar mantle Posted: 08 Aug 2014 08:07 AM PDT Scientists have found that there is an extremely soft layer deep inside the Moon and that heat is effectively generated in the layer by the gravity of the Earth. These findings suggest that the interior of the Moon has not yet cooled and hardened, and also that it is still being warmed by the effect of the Earth on the Moon. This research provides a chance to reconsider how both the Earth and the Moon have been evolving since their births through mutual influence until now. |
| Stem cells show promise for stroke in pilot study Posted: 08 Aug 2014 08:07 AM PDT A stroke therapy using stem cells extracted from patients' bone marrow has shown promising results in the first trial of its kind in humans. The therapy uses a type of cell called CD34+ cells, a set of stem cells in the bone marrow that give rise to blood cells and blood vessel lining cells. Rather than developing into brain cells themselves, the cells are thought to release chemicals that trigger the growth of new brain tissue and new blood vessels in the area damaged by stroke. |
| White dwarfs crashing into neutron stars explain loneliest supernovae Posted: 07 Aug 2014 06:58 PM PDT Astronomers and astrophysicists have found that some of the Universe's loneliest supernovae are likely created by the collisions of white dwarf stars into neutron stars. |
| Wild sheep show benefits of putting up with parasites Posted: 07 Aug 2014 11:59 AM PDT In the first evidence that natural selection favors an individual's infection tolerance, researchers have found that an animal's ability to endure an internal parasite strongly influences its reproductive success. The finding could provide the groundwork for boosting the resilience of humans and livestock to infection. |
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