Why Stephen Hawking Warned Against Contacting Alien Civilizations
Forover a century , world have been searching for foreign civilizations somewhere out there in the cosmos . Though we obviously have found nothing so far , we have become rather good at find planets , support over5,000 of themin the Milky Way since our first discovery in the 1990s . Analyzing the spectrum of light from those planets , we ’ve even identified some intriguing potential hints of life , including dimethyl sulfide on exoplanet K2 - 18b , a flatulence that , on Earth , isproduced only by life ....