<blockquote class="twitter-tweet" data-lang="en"><p lang="en" dir="ltr">Homing in on one strange-looking moon in an alien system far, far away. All in a day's work for our wandering observer at 10 AU from the Sun <a href="https://t.co/UgVAcj4Vgr">pic.twitter.com/UgVAcj4Vgr</a></p>— Carolyn Porco…