“That’s no moon!” Actually, this IS a moon in our very own Solar System 😯 Do you know which one? Answer➡️ https://t.co/bzvRKExpOh#DeathStar #ThatsNoMoon #DeathStarTwin #MayThe4thBeWithYou #MayTheFourthBeWithYou #StarWarsDay pic.twitter.com/DmVfbRTH3B

— ESA Science (@esascience) May 4, 2018