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!
First to capture dark matter on Earth? DEAP-3600, maybe the most sensitive dark matter detector yet, was installed last year more than a mile underground in a nickel mine in Ontario. Its spherical array of light sensors points inward, toward a core full of liquid argon. The hope is that dark matter particles striking argon atoms will trigger tiny flashes of light.<br />