This week, we’re celebrating the fifth anniversary of the moment our Mars Science Laboratory mission landed the Curiosity rover in Gale Crater. In fact, this summer brings several red letter days in Red Planet exploration. Here are 10 things to know about the anniversary of the Curiosity landing—plus some other arrivals at Mars you may not know about: https://nasa.tumblr.com/post/163651444369/solar-system-things-to-know-this-week
