The Weaubleau Structure is a 15.2-kilometer-diameter impact crater buried 300+ meters beneath Missouri's Osage Plateau, completely invisible from Earth's surface. A 200–300 meter asteroid struck 335 m

The Weaubleau Structure is a 15.2-kilometer-diameter impact crater buried 300+ meters beneath Missouri's Osage Plateau, completely invisible from Earth's surface. A 200–300 meter asteroid struck 335 m

The Weaubleau Structure is a 15.2-kilometer-diameter impact crater buried 300+ meters beneath Missouri's Osage Plateau, completely invisible from Earth's surface. A 200–300 meter asteroid struck 335 m

Kentland Crater formed 870 million years ago when a space rock traveling 20+ km/s struck Indiana, releasing energy equivalent to millions of nuclear weapons Shocked quartz crystals in the crater displ

Kentland Crater formed 870 million years ago when a space rock traveling 20+ km/s struck Indiana, releasing energy equivalent to millions of nuclear weapons Shocked quartz crystals in the crater displ

Jeptha Knob is a 300-million-year-old meteorite impact crater buried 2,600 feet below Kentucky's surface The crater spans approximately 1.6 miles (2.6 km) in diameter with a distinctive ring structure

Veevers Crater spans 7.5 kilometers in diameter and formed approximately 685 million years ago during the Neoproterozoic era. Located in the remote Kimberley region of Western Australia, the crater re

Kentland Crater formed 870 million years ago when a space rock traveling 20+ km/s struck Indiana, releasing energy equivalent to millions of nuclear weapons Shocked quartz crystals in the crater displ

Jeptha Knob is a 300-million-year-old meteorite impact crater buried 2,600 feet below Kentucky's surface The crater spans approximately 1.6 miles (2.6 km) in diameter with a distinctive ring structure

Jeptha Knob is a 300-million-year-old meteorite impact crater buried 2,600 feet below Kentucky's surface The crater spans approximately 1.6 miles (2.6 km) in diameter with a distinctive ring structure

Veevers Crater spans 7.5 kilometers in diameter and formed approximately 685 million years ago during the Neoproterozoic era. Located in the remote Kimberley region of Western Australia, the crater re

Veevers Crater spans 7.5 kilometers in diameter and formed approximately 685 million years ago during the Neoproterozoic era. Located in the remote Kimberley region of Western Australia, the crater re

Veevers Crater spans 7.5 kilometers in diameter and formed approximately 685 million years ago during the Neoproterozoic era. Located in the remote Kimberley region of Western Australia, the crater re

A team of South Korean scientists has uncovered new evidence that could help explain how Earth’s atmosphere became rich in oxygen, one of the most transformative events in the planet’s history. Researchers from the Korea Institute of Geoscience and Mineral Resources (KIGAM) report the finding of stromatolites, layered structures formed by microbial communities, within the Hapcheon impact crater on the Korean Peninsula. While the Hapcheon crater is only about 40,000 years old, it shows how stromatolites got a boost from the heat in impact crater hydrothermal systems.