November 7, 2009
Happy Carl Sagan Day itsfullofstars: “Dr. Carl Sagan poses with a model of the Viking lander. The Viking 1 lander was the first spacecraft to touch down safely on Mars.”

Happy Carl Sagan Day

itsfullofstars:

“Dr. Carl Sagan poses with a model of the Viking lander. The Viking 1 lander was the first spacecraft to touch down safely on Mars.”