L ike many of us, Earth bears old pockmarks. Our planet’s crust has a band of ancient craters that formed around 465 million ...

The conclusions come from patterns tracked by scientists that point to several meteorite impacts through geological records.

"We hypothesize that the ring image resulted from errors during EHT's imaging analysis and that part of it was an artifact, ...

This localized impact pattern, unusual given that over 70% of Earth’s continental crust lies outside this region, points to the presence of an ancient debris ring. Over millions of years ...

The mantle is split up into two domains — the African and the Pacific — that emerged when supercontinent Pangaea broke apart.

Back then, those strange invertebrates might have been able to look up through the nighttime shallows and see the glow of Earth’s very own ring, which may have been something like Saturn’s.