ScienceDaily: Top Science News |
- Spotting ultrafine loops in the sun's corona
- Woolly mammoth extinction has lessons for modern climate change
- Climate change to alter global fire risk
- Early gut bacteria regulate happiness
- Nature or nurture? It may depend on where you live
- Epigenomes of newborns and centenarians differ: New clues to increasing life span
- Offspring of older fathers may live longer
| Spotting ultrafine loops in the sun's corona Posted: 12 Jun 2012 04:32 PM PDT A key to understanding the dynamics of the sun and what causes the great solar explosions there relies on deciphering how material, heat and energy swirl across the sun's surface and rise into the upper atmosphere, or corona. Scientists have for the first time observed a new facet of the system: Especially narrow loops of solar material scattered on the sun's surface, which are connected to higher lying, wider loops.  |
| Woolly mammoth extinction has lessons for modern climate change Posted: 12 Jun 2012 11:48 AM PDT Not long after the last ice age, the last woolly mammoths succumbed to a lethal combination of climate warming, encroaching humans and habitat change -- the same threats facing many species today.  |
| Climate change to alter global fire risk Posted: 12 Jun 2012 11:48 AM PDT Climate change is widely expected to disrupt future fire patterns around the world, with some regions, such as the western United States, seeing more frequent fires within the next 30 years, according to a new analysis. The study used 16 different climate change models to generate what the researchers said is one of the most comprehensive projections to date of how climate change might affect global fire patterns.  |
| Early gut bacteria regulate happiness Posted: 12 Jun 2012 08:58 AM PDT Scientists have shown that brain levels of serotonin -- the 'happy hormone' -- are regulated by the amount of bacteria in the gut during early life. The research shows that normal adult brain function depends on the presence of gut microbes during development. Serotonin, the major chemical involved in the regulation of mood and emotion, is altered in times of stress, anxiety and depression and most clinically effective antidepressant drugs work by targeting this neurochemical.  |
| Nature or nurture? It may depend on where you live Posted: 12 Jun 2012 07:13 AM PDT The extent to which our development is affected by nature or nurture -- our genetic make-up or our environment -- may differ depending on where we live, according to new research.  |
| Epigenomes of newborns and centenarians differ: New clues to increasing life span Posted: 11 Jun 2012 12:31 PM PDT An international study sheds important new light on how epigenetic marks degrade over time. Since epigenetic lesions are reversible, it would be possible to develop drugs that increase the life span, the research suggests.  |
| Offspring of older fathers may live longer Posted: 11 Jun 2012 12:31 PM PDT If your father and grandfather waited until they were older before reproducing, you might experience life-extending benefits. Biologists assume that a slow pace of aging requires that the body invest more resources in repairing cells and tissues. A new study suggests that our bodies might increase these investments to slow the pace of aging if our father and grandfather waited until they were older before having children.  |
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