For example if the Betelgeuze system had a planet, with a theoretical large telescope on that planet and looked back at earth. It would see life and civilizations from the 15th century a.d. (~500 light years distance)
For example if the Betelgeuze system had a planet, with a theoretical large telescope on that planet and looked back at earth. It would see life and civilizations from the 15th century a.d. (~500 light years distance)
I just remember reading about it every few years. They’ve found several earth like planets. One I read about in 2014 said it was so similiar to earth that they unofficially nicknamed it “Earth 2”. They found another earth like planet that same month, but it’s size was so different that they made the joke it couldn’t be Earth 3, but based on size it might be Earth 5 (with the joke being the planet was like 2 earths combined).
But our technology was good enough to see the planet is green and blue, indicating life. But our technology wasn’t good enough to zoom in to see what that life looks like. But we know it’s out there.