Back when the Earth was crawling with trilobites and other strange shelled creatures, our planet may have had a ring just like Saturn's. This ancient ring system is thought to have formed about 466 ...
Earth may have sported a Saturn-like ring system 466 million years ago, after it captured and wrecked a passing asteroid, a new study suggests. The debris ring, which likely lasted tens of millions of ...
A comet that has not been seen for more than 80,000 years is expected to be visible from Earth, potentially during two separate time periods in the next month.