This heart-shaped formation on the surface of the Red Planet from Planet Four: Terrains really made me smile. View the original post at daily.zooniverse.org/2015/08/19/mars-3-you.
Citizen Science, Planet Four: Terrains, Projects
Citizen Science, Planet Four: Terrains, Projects
This heart-shaped formation on the surface of the Red Planet from Planet Four: Terrains really made me smile. View the original post at daily.zooniverse.org/2015/08/19/mars-3-you.
Daily Zooniverse 