Solar Orbiter spots fast magnetic waves in the Sun's polar corona

A team led by Peking University used Solar Orbiter imagery to detect high-frequency magnetic waves in polar coronal holes that NASA's SDO missed. The EUI instrument captures an image every five seconds at 420 km per pixel and logged 2,318 wave events versus 560 for SDO.

• EUI images every 5 seconds at 420 km per pixel versus 12 seconds and 1,100 km for SDO
• EUI detected 2,318 wave events, SDO only 560 — more than 4 times as many
• 38% of EUI waves were shorter than 100 seconds versus 9% for SDO
• The faster waves carry 2.6 times more power than earlier estimates