planets

Youtube’s recommendations to me lately have been pretty scientific. I’ve been watching a lot about stars, planets and black holes on one end of the scale, and videos about quantum mechanics and subatomic particles on the other. Scattered in my recommendations though are the odd video about life outside our solar system. You know, aliens and stuff. Things that are mostly just speculation. Really, when you think about it, there are a lot of stars with a lot of planets orbiting them. Scientists have been finding a lot of Earth-like planets, although many have been a lot bigger than Earth.… [Continue Reading]