NPR has a great story about Neil deGrasse Tyson and the Hayden Planetarium pitching in when given a chance to help out the Man of Steel.
DC Comics, Tyson explains, approached him for permission to use the Planetarium — as well as his likeness — in a story where Superman witnesses the destruction of Krypton, since the light from the distant planet is just now arriving on Earth. Tyson told DC Comics that he was happy to help, and that instead of just making up the story of Superman seeing Krypton, he could help them ground it in at least some actual science.
*There are more images on NPR's blog!*