Jupiter, eat your heart out. Our planet may have ripped apart an asteroid and worn its scattered debris as a ring for a while.
466 million years ago, Earth was an alien world. Trilobites swam through the world’s first coral reefs, alongside strange, armored fish without jaws. And high above the alien seas, a slowly crumbling ring of rocky debris circled our planet’s equator, occasionally raining meteors on the ground below. That’s all true if Monash University geologist Andrew Tomkins and his colleagues are correct about the origins of 21 ancient meteor craters, that is.
