Constellations design #3 will soon be available in our #ESAshop …can you guess which object features in new the design? Hint: If you don't see it in the sky, you can also spot it on the ground near Malargüe, New Norcia and Cerebroshttps://t.co/zk0fIUgXyD

— ESA (@esa) May 5, 2018