Asked by emiridesu to Rochelle, Michaela, Camilla, Beth, Adrian on 29 Jan 2016.
So. Many. Planets. In our solar system there are officially only 8, possibly 9 if the theory of a hidden planet is confirmed. Let’s think bigger – In our galaxy there are an estimated 100 billion planets. Still not impressed? Well, there are an estimated 200 billion galaxies in the universe so a rough estimate of the number of planets in the universe is one septillion. That’s a real number by the way and it looks like this: 1,000,000,000,000,000,000,000,000! Think how many possibilities for life that is…
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