Scientists have identified patterns in the Earth's magnetic field that evolve on the order of 1,000 years, providing new insight into how the field works and adding a measure of predictability to changes in the field not ...
Earth Sciences
Jul 7, 2017
3
552
New research on solar storms finds that they not only can cause regions of excessive electrical charge in the upper atmosphere above Earth's poles, they also can do the exact opposite: cause regions that are nearly depleted ...
Space Exploration
Apr 11, 2017
6
419
The Earth's core consists mostly of a huge ball of liquid metal lying at 3000 km beneath its surface, surrounded by a mantle of hot rock. Notably, at such great depths, both the core and mantle are subject to extremely high ...
Earth Sciences
Feb 22, 2017
4
398
New findings based on a year's worth of observations from NASA's Van Allen Probes have revealed that the ring current - an electrical current carried by energetic ions that encircles our planet - behaves in a much different ...
Space Exploration
May 19, 2016
46
696
When researchers captured Eurasian reed warblers along the Russian coast during their spring migrations and flew them 1,000 kilometers east to Zvenigorod, the birds weren't fazed; they simply re-oriented themselves toward ...
Plants & Animals
Oct 5, 2015
0
32
When the sun hurls a billion tons of high-energy particles and magnetic fields into space at speeds of more than a million miles per hour and the "space weather" conditions are right, the resulting geomagnetic storm at Earth ...
Space Exploration
Aug 11, 2015
0
170
Dolphins are indeed sensitive to magnetic stimuli, as they behave differently when swimming near magnetized objects. So says Dorothee Kremers and her colleagues at Ethos unit of the Université de Rennes in France, in a study ...
Plants & Animals
Sep 29, 2014
2
0
Magnetic reconnection can trigger geomagnetic storms that disrupt cell phone service, damage satellites and black out power grids. But how reconnection, in which the magnetic field lines in plasma snap apart and violently ...
Space Exploration
Sep 10, 2014
1
0
Scientists at the University of Leeds have solved a 300-year-old riddle about which direction the centre of the earth spins.
Earth Sciences
Sep 16, 2013
4
0
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
4
0
