Hidden craters reveal Earth may once have had a ring – like Saturn

https://theconversation.com/hidden-craters-reveal-earth-may-once-have-had-a-ring-like-saturn-239068

2 Comments

  1. Seems at first impression that asteroids could be captured into polar orbits as well, if less often notwithstanding. Article appears to imply that equatorial alignment is a necessary element in ring formation scenarios.

    I could see the temporariness inherent, but aren’t Saturn’s also?

    What am am I missing here?