CNN The Hunt for Planet B November 21, 2021 02:26:00
One of my favorite little lakes. there's an eagle circling around in front of us. in grad school i asked the question what does the earth look like from very far away when you can't continent and oceans and can you tell there is life on that planet? so we looked at the moon. not too many days after new moon when you can see the thinnest crescent at sunset. you'll notice that the dark part of the moon is also visible because the earth is shining on that part of the lunar surface. so if you take a telescope and you look at that light, it's earth's light. all jumbled up together. it's the land, i...