Certainly a lot of people here scratching their heads-and for good reason,the only plausible explanation is lightning from thunderstorms,but that seems odd-its the desert not much thunderstorm activity there.
Really does add weight to many other IIS members thoughts that APOD images are slipping (personally I did not agree with their thoughts on Tuc47),but many here did,and this image is very questionable-I've seen similar styles of images-and Sydney has much more light that desert country.
Its a shame APOD standards are slipping