KTVZ3 天
Earth ring theory may shed light on an unexplained ancient climate event, scientists say
(CNN) — Famously known for its extensive ring system, Saturn is one of four planets in our solar system that have the ...
ABC 17 News3 天
Earth may have had a Saturn-like ring over 400 million years ago, scientists say
(CNN) — Famously known for its extensive ring system, Saturn is one of four planets in our solar system that have the distinctive feature. And now, scientists hypothesize that Earth may have sported ...