It was formed slightly over 66 million years ago when an asteroid, about ten kilometers (six miles) in diameter, struck Earth. The crater is estimated to be 200 kilometers (120 miles) in diameter and 1 kilometer (0.62 miles) in depth.

The EID lists fewer than ten such craters, and the largest in the last 100,000 years (100 ka) is the 4.5 km (2.8 mi) Rio Cuarto crater in Argentina. [2] However, there is some uncertainty regarding its origins [ 3 ] and age, with some sources giving it as < 10 ka [ 2 ] [ 4 ] while the EID gives a broader < 100 ka.

1 天前 · An asteroid first spotted in December has a 1.2% chance of hitting Earth in 2032. Scientists are tracking the space rock to learn more about its size and trajectory.

6 天之前 · Measuring between 10 and 15 kilometers in diameter, the asteroid created a colossal crater about 200 kilometers wide. The impact triggered a series of catastrophic events, including rapid climate changes that ultimately led to the extinction of the non-avian dinosaurs and approximately 75% of all species on Earth. Scientists believe the primary ...

Meteor Crater, or Barringer Crater, is an impact crater about 37 mi (60 km) east of Flagstaff and 18 mi (29 km) west of Winslow in the desert of northern Arizona, United States. The site had several earlier names, and fragments of the meteorite are officially called the Canyon Diablo Meteorite, after the adjacent Canyon Diablo.

2024年12月16日 · Impact craters are formed when an asteroid or meteoroid collides with a planet’s surface. The force of the impact causes dramatic changes to the terrain, creating raised rims, central depressions, and distinct geological patterns detectable by …

3 天之前 · The scientists concluded that the asteroid was a relic of a much bigger object — a mix of rock and ice that measured perhaps 60 miles wide. ... Occator Crater on the dwarf planet Ceres, seen by ...

2024年10月3日 · The images confirm the 9km Nadir Crater, located 300m under the floor of the Atlantic Ocean, was caused by an asteroid smashing into Earth at the end of the Cretaceous period around 66 million...

2019年1月25日 · Meteor Crater (also known as Barringer Crater) on Earth is only 50,000 years old. Even so, it’s unusually well preserved in the arid climate of the Colorado Plateau. Meteor Crater formed from the impact of an iron-nickel asteroid about 46 meters (150 feet) across. Most of the asteroid melted or vaporized on impact.

2019年9月9日 · The buried crater, over 90 miles in diameter, was created when a massive asteroid struck the planet 66 million years ago and brought a calamitous end to the reign of dinosaurs.