Elmo Talks with NASA Astronaut Mike Massimino
NASA astronaut Mike Massimino, left, and Sesame Street's Elmo speak at the STS-135 Tweetup on July 7, 2011 at Kennedy Space Center in Cape Canaveral, Fla. Elmo asked the astronauts questions about living and working in space.
Astronaut Mike Massimino Meets Skrillex
Massimino shows recording artist Skrillex the inside of a mock up of a space shuttle. Image released May 8, 2013.
Spaceman book cover
Massimino's new book, "Spaceman," hit bookstores on Oct. 4, 2016.