character: Carl Sagan
topic: The Possibility of Life in Cosmic Habitats
grade: 11
subject: Physics
LearnActions
SearchCreate
character: Neil deGrasse Tyson
topic: Exploration of Exoplanets and Astrobiology
grade: 11
subject: Physics
LearnActions
SearchCreate
character: Stephen Hawking
topic: The Search for Extraterrestrial Intelligence
grade: 11
subject: Physics
LearnActions
SearchCreate
character: Frank Drake
topic: Drake Equation and Life in the Universe
grade: 11
subject: Physics
LearnActions
SearchCreate