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 WeekThis 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.




























