Leland MelvinLeland Melvin is a former NFL draftee who became an engineer and a NASA astronaut logging more than 565 hours aboard the shuttle Atlantis. Melvin was appointed the head of NASA Education in 2010 and served as co-chair of a White House STEM task force He has hosted the television series "Child Genius" and has been a judge on the TV series "BattleBots." In 2017 HarperCollins published his first memoir, Chasing Space: An Astronaut's Story of Grit, Grace, and Second Chances. Read More Read Less