Students Preparing a Changing Earth

Carl Sagan Explains Our Place in the Known Universe

Carl Sagan from csicop.orgWhen we look into our sky, we can only see stars in our solar neighborhood set against a backdrop of the milky way galaxy. What we don’t know, and what Carl Sagan is explaining in this video, is that there are 100 billion stars in our galaxy alone. The brilliant light we witness and have labeled the milky way is simply those 100 billion stars seen “edge-on.” How mysterious it feels to wonder if other life like us thrives elsewhere on those stars- perhaps life that wonders if we exist. But even still, our galaxy is not alone! There are 100 billion other galaxies just like there are 100 billion stars. This universe is simply beautiful.

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