Insurance

“We’re talking about an insurance policy—a backup plan in case something does happen to the Earth. I once talked to Carl Sagan about this, who said, “We live in the middle of a shooting gallery with thousands of asteroids in our path that we haven’t even discovered yet. So, let’s be at least a two-planet species, as a backup plan.””

https://news.nationalgeographic.com/2018/02/there-s-only-one-way-for-humanity-to-survive–go-to-mars-/

Intelligent Life

Not directly relevant to Mars or children’s books about Mars, but this got me staring at the wall and thinking for a while.

In all likelihood, the shortest psst’s never got off their planet.