May 10
This Space Sphere Contains a Secret Message to Aliens [Space]
Posted in: NASA, Retro, space, Today's Chili, top
This is LAGEOS. Since 1976, this perfect disco sphere has been orbiting Earth carrying 426 cube corner reflectors made of fused silica glass—except four, made of germanium. It also contains a coded message, designed by Dr. Carl Sagan. More »
Post a Comment