Stephen Hawking is again warning about announcing our presence to any alien civilizations that might be out there, especially those that could be more technologically advanced.
In his new half-hour program “Stephen Hawking’s Favorite Places” on science-themed subscription service CuriosityStream, the world’s most famous theoretical physicist flies by the potentially habitable exoplanet Gliese 832c in a CGI spaceship as part of his hypothetical dream itinerary for a tour of the universe.
The super-Earth is only 16 light-years away and just the sort of world the Hawking-supported Breakthrough: Listen initiative hopes to scan for signs of alien signals using our most sensitive radio telescopes.
“If intelligent life has evolved (on Gliese 832c), we should be able to hear it,” he says while hovering over the exoplanet in the animated “U.S.S. Hawking.” “One day we might receive a signal from a planet like this, but we should be wary of answering back. Meeting an advanced civilization could be like Native Americans encountering Columbus. That didn’t turn out so well.”