ScienceDaily: Top Science News |
- Clay may have been birthplace of life on Earth, new study suggests
- How pigeons may smell their way home
- Astronomy: White dwarfs hide information on dark forces
- New ligament discovered‬ in the human knee
- Oldest ice core: Finding a 1.5 million-year record of Earth's climate
| Clay may have been birthplace of life on Earth, new study suggests Posted: 05 Nov 2013 10:20 AM PST Clay -- a seemingly infertile blend of minerals -- might have been the birthplace of life on Earth. Or at least of the complex biochemicals that make life possible, biological engineers report.  |
| How pigeons may smell their way home Posted: 05 Nov 2013 07:35 AM PST Homing pigeons are extraordinary navigators, but how they manage to find their way back to their lofts is still debated. To navigate, birds require a 'map' (to tell them home is south, for example) and a 'compass' (to tell them where south is), with the sun and the Earth's magnetic field being the preferred compass systems. A new paper provides evidence that the information pigeons use as a map is in fact available in the atmosphere: odors and winds allow them to find their way home.  |
| Astronomy: White dwarfs hide information on dark forces Posted: 05 Nov 2013 05:14 AM PST Researchers have ruled out a multitude of possible parameters for dark photons - a type of dark matter and energy - with the help of white dwarfs. In some aspects, the shining of these dying stars gives more information on dark forces than is provided by Earth-based laboratories.  |
| New ligament discovered‬ in the human knee Posted: 05 Nov 2013 05:13 AM PST Two knee surgeons have discovered a previously unknown ligament in the human knee. This ligament appears to play an important role in patients with anterior cruciate ligament (ACL) tears.  |
| Oldest ice core: Finding a 1.5 million-year record of Earth's climate Posted: 05 Nov 2013 05:12 AM PST How far into the past can ice-core records go? Scientists have now identified regions in Antarctica they say could store information about Earth's climate and greenhouse gases extending as far back as 1.5 million years, almost twice as old as the oldest ice core drilled to date.  |
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