Yes, Apollo 11 astronauts left it there in 1969 and its still used today to do very precise measurements with laser beams. I had no idea. This is one kind of discovery that you'll read on Endlo nightly discoveries editions.
Each night, Endlo publishes one short edition — five things worth your attention, curated with AI but reviewed by a real person before anything ships. You read them, reach the end, and it closes. No feed, no infinite scroll, no streaks, no notifications pulling you back, no account. Being done for the day is the point, not a missing feature.