How Lagrange points solved one of physics’ biggest problems

Paul M. Sutter is an astrophysicist at The Ohio State University, host of “Ask a Spaceman and “Space Radio,” and author of “Your Place in the Universe” (Prometheus Books, 2018). Sutter contributed this article to’s Expert Voices: Op-Ed & Insights.

There aren’t a lot of guarantees in life, and there are even fewer in space. Everything is moving; everything is chaotic. “Life” in the solar system is in constant motion.