So no aurora tonight on subantarctic Macquarie Island, just huge strange moving spiral light patterns. @BOM_au or any of my Astronomy/SciComm friends any idea what it is? Satellite with upper atmosphere clouds? #Antarctica #Astronomy #WeirdWeather #Subantarctic pic.twitter.com/ImcicnkJs6

— Dane Brookes (@DnBrks) June 19, 2022