We look in depth at the seven wonderful earth-like planets with liquid water against toddler mini-star TRAPPIST-1. Also, Angelo discovers flatearthers in his facebook feed and try to teach you how to talk to them. Dan tries to prova that the earth is flat but finds it difficult.
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Twitter: @FoAAngelo @danhorning
NASA article on TRAPPIST-1: https://www.nasa.gov/press-release/nasa-telescope-reveals-largest-batch-of-earth-size-habitable-zone-planets-around
Another system with 7 planets: https://en.wikipedia.org/wiki/HR_8832
This one also sports 7 planets: https://en.wikipedia.org/wiki/HD_10180
Kepler-90: Also 7 planets. https://en.wikipedia.org/wiki/Kepler-90