@[email protected] to Ask [email protected]English • 1 month agoHow large would a city/base on the moon have to be in order to be visible with the unaided human eye from earth?message-square25fedilinkarrow-up1109arrow-down10file-text
arrow-up1109arrow-down1message-squareHow large would a city/base on the moon have to be in order to be visible with the unaided human eye from earth?@[email protected] to Ask [email protected]English • 1 month agomessage-square25fedilinkfile-text
minus-square@winterayarslinkEnglish3•1 month agoCool idea for an SOS beacon: Just shoot an incredibly bright red light at Earth and they’ll know something bad is happening :D
minus-squarePennomilinkfedilinkEnglish13•1 month agoIf you can shoot an incredibly bright red light, chances are you can shoot an incredibly bright radio light too.
Cool idea for an SOS beacon: Just shoot an incredibly bright red light at Earth and they’ll know something bad is happening :D
If you can shoot an incredibly bright red light, chances are you can shoot an incredibly bright radio light too.