"The History of Astronomy, Spacefiles Exploration" You Tube
"History of Astronomy, Nomad Distribution" You Tube
"100 Greatest Astronomy Discoveries, Bill Nye" You Tube
"Astrophysicist Neil deGrasse, Mars" You Tube
"Astrophysicist Neil deGrasse, Why We Should Do Hard Things, " You Tube
"NASA's Next Mars Rover, CBS" You Tube
