Are you alone is (usually) a relatively easy question to answer... But are WE (e.g., life on Earth) alone (in the Universe) is a bit more complex... Enter the Drake Equation for some of your important are we alone pondering... 📷 :University of Rochester via https://science.nasa.gov/exoplanets/search-for-life/ #astronomy #astrodon #space #science #DrakeEquation #FermiParadox #aliens #Universe