Double trouble (w/ Video)
Two solar eruptions expand side-by-side into space in this movie, playing out in front of the ESA/NASA Solar and Heliospheric Observatory, SOHO, on 1–2 July 2013.
Space Exploration
Jul 23, 2013
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Page 8 - News tagged with geomagnetic fields
Research pair find 5.9 year cycle of oscillations in length of day
(Phys.org) —A pair of researchers, Richard Holme of the University of Liverpool in the U.K. and Olivier de Viron of the University of Paris, in France has found that the length of Earth's days follows a cyclic oscillation ...
Measurements help defend grid against space weather
Since the invention of the telescope four centuries ago, astronomers have become more aware of the active nature of the Sun, and how events on its surface can affect the Earth. One of the most dramatic of these is 'space ...
Space Exploration
Jul 2, 2013
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Earth's iron core is surprisingly weak, researchers say
The massive ball of iron sitting at the center of Earth is not quite as "rock-solid" as has been thought, say two Stanford mineral physicists. By conducting experiments that simulate the immense pressures deep in the planet's ...
Earth Sciences
May 17, 2013
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Study says salmon may use magnetic field as navigational aid
The mystery of how salmon navigate across thousands of miles of open ocean to locate their river of origin before journeying upstream to spawn has intrigued biologists for decades, and now a new study may offer a clue to ...
Plants & Animals
Feb 7, 2013
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First evidence of fish sensing geomagnetic fields from a Czech Christmas market
Carp stored in large tubs at Czech Christmas markets align themselves in the north-south direction, suggesting they possess a previously unknown capacity to perceive geomagnetic fields, according to a new study published ...
Plants & Animals
Dec 5, 2012
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Video-article shows how to purify magnetic bacteria
Magnetotactic bacteria, like Magnetospirillum magneticum, have evolved cellular processes that allow them to take up iron molecules to produce magnetic nanocrystals like magnetite. Since they were first discovered and isolated ...
Cell & Microbiology
Nov 15, 2012
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Rapid changes in the Earth's core: The magnetic field and gravity from a satellite perspective
Annual to decadal changes in the earth's magnetic field in a region that stretches from the Atlantic to the Indian Ocean have a close relationship with variations of gravity in this area. From this it can be concluded that ...
Earth Sciences
Oct 22, 2012
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An extremely brief reversal of the geomagnetic field, climate variability and a super volcano
41,000 years ago, a complete and rapid reversal of the geomagnetic field occured. Magnetic studies of the GFZ German Research Centre for Geosciences on sediment cores from the Black Sea show that during this period, during ...
Earth Sciences
Oct 16, 2012
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Researchers find links between magnetic field inversions, mantle convection and tectonics
On a time scale of tens to hundreds of millions of years, the geomagnetic field may be influenced by currents in the mantle. The frequent polarity reversals of Earth's magnetic field can also be connected with processes in ...
Earth Sciences
Jul 29, 2012
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