This shows the rim of Jezero Crater, Mars, as seen in the first 360-degree panorama taken by the Mastcam-Z instrument aboard NASA’s Perseverance Mars rover, February 2021.
Mercury. Image: NASA
About 7,000 years ago, a vast lake spread hundreds of square kilometers across north-central Africa. Known to scientists as Lake Mega Chad, it covered more than 400,000 square kilometers at […]