What Carl Sagan Understood About Human Cruelty

This is an edition of Up for Debate, a newsletter by Conor Friedersdorf. On Wednesdays, he rounds up timely conversations and solicits reader responses to one thought-provoking question. Later, he publishes some thoughtful replies. Sign up for the newsletter here.

Question of the Week

This week, five planets are aligning in the night sky: Mercury, Jupiter, Venus, Uranus, and Mars will all be visible just after sunset, alongside the moon. I’d like to take this cosmic occasion to ask: What role has outer space played in your life, your worldview, or your imagination?

Or: How, if at all, should we keep exploring it?

Send your responses to conor@theatlantic.com

Conversations of Note

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Amid news of another mass shooting this week, I found myself returning to Carl Sagan. In Cosmos, the astronomer and astrophysicist did his best to give readers a sense of the unfathomable:

No planet or star or galaxy can be typical, because the Cosmos is mostly empty. The only typical place is within the vast, cold, universal vacuum, the everlasting night of intergalactic space, a place so strange and desolate that, by comparison, planets and stars and galaxies seem achingly rare and lovely. If we were randomly inserted into the Cosmos, the chance that we would find ourselves on or near a planet would be less than one in a billion trillion trillion … Worlds are precious.