Archive for Earth magnetic field

Birds can see The magnetic fields

Posted in 2018, animals, Uncategorized with tags , , , on April 5, 2018 by MARIE EMMANUELLE QUILICHINI

birds

Researchers have long suspected that birds can see magnetic fields.

Now, two new studies (one examining zebra finches and the other looking at European robins) have identified a specific protein that gives them this uncanny sense.

Both single out Cry4, a light-sensitive protein found in the retina. This raises the interesting possibility that birds can see geomagnetic storms–not only by watching auroras as humans do, but also by witnessing the underlying unrest of Earth’s magnetic field.

Learn more about this research from ScienceNews

https://www.sciencenews.org/article/birds-get-their-internal-compass-newly-id-eye-protein

M7-CLASS SOLAR FLARE : Sunspot AR2036 erupted on April 18th at 1307 UT, producing a strong M7-class solar flare. 

Posted in 2014 with tags , , , , , , , , , on April 19, 2014 by MARIE EMMANUELLE QUILICHINI

An S1-class radiation storm is underway in the aftermath of the flare. However, this is a relatively minor storm which poses minimal threat to satellites and aircraft.

Of greater interest is a CME that emerged from the blast site. The Solar and Heliospheric Observatory recorded the storm cloud racing away from the sun at aproximately 800 km/s:

cme_anim

This CME could deliver a glancing blow to Earth’s magnetic field on April 20-21. Two or three minor CMEs traveling ahead of this one are expected to arrive on April 19-20, and the combined impacts could generate geomagnetic activity throughout the weekend. NOAA forecasters put the odds of a geomagnetic storm at 55% on Saturday, increasing to 75% on Sunday. High-latitude sky watchers should be alert for auroras. Solar flare alerts: textvoice

http://spaceweather.com/

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