#2) https://mars.nasa.gov/all-about-mars/facts/
#3 ,4 & 5) https://www.nasa.gov/humans-in-space/humans-to-mars/#:~:text=NASA%20is%20advancing%20many%20technologies,to%20the%20Red%20Planet%20possible.
#7) https://www.spacex.com/humanspaceflight/mars/
#8) https://mars.nasa.gov/mars2020/spacecraft/rover/
#9) https://mars.nasa.gov/mars2020/multimedia/raw-images/
#10) https://mars.nasa.gov/technology/helicopter/#Anatomy