Aika outo ilmiö Italiassa 27.3.2023.
Photographer Captures Ultra-Rare Red Ring of Light Over Italy (https://petapixel.com/2023/04/03/photographer-captures-ultra-rare-red-ring-of-light-over-italy/)
Space Weather: Geomagneettinen myrsky (https://www.spaceweather.com/archive.php?view=1&day=01&month=04&year=2023).