Vintage 2007 SETI Institute Tee

Vintage 2007 SETI Institute Tee

$75

Vintage

2007 SETI Institute Tee

✵ Drake Equation DNA logo on the front
✵ SETI Institute logo on the front
✵ Drake Equation on the back

Size Large — measurements within photos

The Drake equation is a probabilistic argument used to estimate the number of active, communicative extraterrestrial civilizations in the Milky Way Galaxy.