For all I know we may be visited by a different extraterrestrial civilization every second Tuesday, but there's no support for this appealing idea. The extraordinary claims are not supported by extraordinary evidence.


7 min 25 sec - Cosmos: A Personal Voyage (1990 Update) - Encyclopedia Galactica

Carl Sagan Quotes

For all I know we may be visited by a different extraterrestrial civilization every second Tuesday, but there's no support for this appealing idea....

For all I know we may be visited by a different extraterrestrial civilization every second Tuesday, but there's no support for this appealing idea....

For all I know we may be visited by a different extraterrestrial civilization every second Tuesday, but there's no support for this appealing idea....

For all I know we may be visited by a different extraterrestrial civilization every second Tuesday, but there's no support for this appealing idea....