Guardians of the Galaxy go into space with NASA

Marvel’s Groot and Rocket will head to space on NASA’s newest mission patch

By Rachel Feltman
Washington Post Speaking of Science July 25 2016
https://www.washingtonpost.com/news/speaking-of-science/wp/2016/07/25/marvels-groot-and-rocket-will-head-to-space-on-nasas-newest-mission-patch
 

One famous comics linkup not mentioned in the story above is Peanuts and the Apollo 10 mission.
Charles Schulz used Snoopy and his other characters in support of NASA for many years around the Apollo missions.