Not a dumb question at all NASA pointed the Galileo Satellite at earth during one of its flyby to see if they could detect life via the techniques they would li

Not a dumb question at all NASA pointed the Galileo Satellite at earth during one of its flyby to see if they could detect life via the techniques they would like to apply to extrasolar planets: https://www.astrobio.net/alien-life/seeing-earth-exoplanet-signs-life-visible/ https://www.astrobio.net/alien-life/seeing-earth-exoplanet-s...