来自MSN4 个月
66 million years ago, 2 asteroid strikes doomed dinosaurs, reveals 5-mile crater
Researchers have imaged a hidden scar, which is the evidence of a cataclysmic event that impacted Earth millions of years ago. This is the 9-km wide (5-mile) Nadir Crater. It’s a massive impact ...
来自MSN1 个月
An Ice-Capped Crater Was Discovered on Mars. But Social Media Is Misrepresenting the Discovery
The crater itself is centred at 165° E, 73° N on the martian surface. The image has aresolution of roughly 21 metres per pixel. This image was created using data from the nadir and colour ...