June 3, 2024 — New research has found evidence that fresh water on Earth, which is essential for life, appeared about four billion years ago -- five hundred million years earlier than previously ...

Scientists, including Johann Klages, discovered an ancient 1,000-mile river system beneath Antarctica from 40 million years ago. This finding, linked to Eocene epoch climate changes, provides ...

Between 34 million to 44 million years ago, an epoch known as the middle-to-late Eocene, Earth's atmosphere transformed drastically. As carbon dioxide levels plummeted, global cooling triggered ...

The ring may have contributed to the coldest period on Earth, which occurred within the past 500 million years. Between 488 million and 443 million years ago, falling debris from a large asteroid ...

A seemingly out-of-place boulder in Tonga hints at a massive tsunami that hit the region 7,000 years ago. By Natalia Mesa Published May 22, 2025 Science Physics & Chemistry ...

250 million years ago, the Earth was made up of a vast sea and one supercontinent. Over some 40 million years, during what’s known as the Triassic period, ...

Earth tipped over on its side and back between 79 million and 86 million years ago, a study shows. The planet tilted by 12 degrees — which would've moved New York City to where Florida is right now.

The researchers' idea that Earth once had rings comes from reconstructions of Earth's plate tectonics from the Ordovician period—which ran between 485.4 million years and 443.8 million years ago ...