Let’s take the word “Kassierer”, which is German for cashier. Kassierer is the male form, Kassiererin is the female form.
The idea of the Gendersternchen is that you write Kassierer*in to indicate that it means either male or female. I believe “Sternchen” (“little star”) translates to asterisk.
Russian fighter jets doing exercise sorties and soon after, they can be observed by a student in Kyiv? That’s not too unlikely I suppose.