“We will find extraterrestrial life among us. For all we know, it may be here already. We do not see things until we know they exist. For example, when Christopher Columbus arrived in America, the Native Americans did not know what his boat was, as they had never seen one before. Until we see aliens, we will not know what to expect. There are known unknowns and unknown unknowns, and for all we know (or don’t), aliens are already with us, waiting to be discovered.”
Does humanity have a future beyond Earth?
"Nuclear war. Runaway climate change. A global pandemic. Today our world faces all manner of existential threats. But scary possibilities like these are nothing compared to what astronomers say lies in store for Earth. Our planet’s ultimate destiny is to be baked,...
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