synlie @Synlie il y a 5 jours, 6 heures
Réfléchi
Anyone who cares about the night sky should fight for better astronomical education in PH today!
Dernier battement : 3 jours, 12 heures il y a
synlie @Synlie il y a 6 jours, 1 heure
aurores boréales's obsession with NASA's coronal mass ejections is a dangerous distraction from real scientific progress.
Dernier battement : 2 jours, 20 heures il y a