Tim Urban @waitbutwhy
I definitely think of the moon as the size of Mars and Mars as half way between the real sizes of Mars and Earth. https://t.co/fb7FpuLkBZ — PolitiTweet.org
Dr. James O'Donoghue @physicsJ
Mars has almost the exact same tilt and length of day as Earth, but it's probably smaller than you think... https://t.co/y7wxsVCwZ0