4 Vesta

A massive asteroid roughly 530km in diameter with a heavily cratered surface, featuring a gigantic impact basin at its south pole that exposed its internal structure and ejected numerous fragments that now form the Vesta family of asteroids.

Launched in 2004, Rosetta made history as the first spacecraft to orbit a comet, escorting 67P/Churyumov-Gerasimenko for two years and deploying the Philae lander before deliberately impacting the comet's surface in 2016.

Uranus

A cold, blue-green ice giant planet tipped nearly sideways on its axis, with a set of narrow rings and a family of at least 27 moons named after literary characters.