A big solar radio burst

Solar radio bursts are short duration radio wave emissions from the sun’s surface usually coinciding with coronal mass ejection events (disturbances on the sun’s surface). These bursts are like a radio transmitter on the sun and the signal can well be received on earth. In fact, unlike terrestrial radio, the solar radio bursts cover a wide spectrum of frequencies from UHF down to HF (shortwave). Solar radio bursts are relatively rare. Now, with the onset of a new solar cycle (# 25) they occur more frequently and the above image shows such an event recorded by a solar observatory in Australia on 26th August, 2021 at about 23:22 UTC (GMT).

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