NASA’s Perseverance Rover on Mars Begins Steep Climb to Rim of Crater

NEW YORK—NASA’s Perseverance rover is tackling a steep new challenge on Mars. The six-wheeled rover has spent the last 3 1/2 years roaming around the bottom of a crater. On Tuesday, it began climbing to the top. The rover will go up 1,000 feet (305 meters) to the rim of Jezero Crater to dig up rock samples. Since landing on the red planet in 2021, Perseverance has collected 22 rock core samples from the floor of the crater, which was once filled with water. The rover’s samples may help scientists piece together what the planet’s climate looked like billions of years ago—and learn whether any ancient Martian life lurked. NASA is exploring ways to bring the rock samples to Earth....