50 Years of Human Space Exploration. This is by far the coolest pin I will see tonight. So amazing as to how far the space exploration campaign(s) has come since we first step foot into the putter abyss!
The Dance of Venus. An accurate scientific drawing of Venus amazing pattern around the Earth Did you know that Venus, our closest planetary neighbour, draws a beautiful fivefold pattern around Earth? She does this every eight years.
The unmanned Voyager 1 and 2 probes were launched in 1977 on a mission to visit all the outer planets of the solar system. After 35 years in space, the twin probes are approaching the edge of our solar system.
Crescent Moon & Earth from space. "Quite possibly, the purpose of the universe is to provide a congenial home for self-conscious creatures who can ask profound questions and who can probe the nature of the universe itself.