This is a 'coronal hole' - a region in the sun's atmosphere where magnetic fields open up and allow solar wind to escape. NASA's Solar Dynamics Observatory photographed the structure on March 20th:

Aurora alerts: SMS Text.Ī LARGE HOLE IN THE SUN'S ATMOSPHERE : A large hole has opened in the sun's atmosphere, and it is spewing a stream of solar wind toward Earth. The 'ripple effect' ignited colorful lights inside the Arctic Circle. This kind of magnetic ripple is a typical sign of a CME passing nearby. Case in point: Yesterday, March 20th, the interplanetary magnetic field (IMF) near Earth suddenly rotated by almost 180 degrees.

Neutron counts from the University of Oulu's Sodankyla Geophysical Observatory show that cosmic rays reaching Earth are slowly declining-a result of the yin-yang relationship between the solar cycle and cosmic rays.ĬLOSE ENCOUNTER WITH A CME : Even a near miss from a CME can spark beautiful auroras. Credit: SDO/HMIĬosmic Rays Solar Cycle 25 is intensifying, and this is reflected in the number of cosmic rays entering Earth's atmosphere. Sunspot complex AR3256-57 poses a threat for M-class solar flares.

El royale casino app download