geomagnetic

Above - NASA's Solar Dynamics Observatory captured an image of a long-duration solar flare on June 13 2022. This lasted eight hours and caused radio blackouts over Japan and southeast Asia. Below - A view of the CME as it erupted from the sun as a result of the solar flare. This was recorded by the outer LASCO C3 coronagraph onboard the Solar and Heliospheric Observatory (SOHO). The white circle in the middle indicates the position and size of the Sun

Solar eruption that passed Earth this morning could spark geomagnetic storms over the next few hours

A solar eruption that passed by Earth this morning could spark minor geomagnetic storms lasting days, scientists have warned.  The coronal mass ejection (CME) delivered our planet a ‘glancing blow’ at 00:37 ET (4:37 BST) Wednesday. Experts predict effects of the CME, which could include power outages, may be felt in the hours ahead. CMEs are …

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The Ghostly Sounds of Auroras Can Be Heard, Even When They're Invisible

The Ghostly Sounds of Auroras Can Be Heard, Even When They’re Invisible

If you’re up high, and you listen carefully on nights when the northern sky dances with blazing sheets of green light – Earth’s spectacular aurora borealis – you might hear some ghostly sounds.   Almost imperceptible, the sounds had only been heard during the wildest aurora displays, described as rushing sounds, like a waterfall at …

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