名为罗切特的火星岩块

2021年8月28日

Mars Rock Rochette
Image Credit: NASA, JPL-Caltech

Explanation: Taken on mission sol 180 (August 22) this sharp image from a Hazard Camera on the Perseverance rover looks out across a rock strewn floor of Jezero crater on Mars. At 52.5 centimeters (21 inches) in diameter, one of the rover’s steerable front wheels is at lower left in the frame. Near center is a large rock nicknamed Rochette. Mission planners don’t want to avoid Rochette though. Instead Perseverance will be instructed to reach out with its 2 meter long robotic arm and abrade the rock’s surface, to determine whether it has a consistency suitable for obtaining a sample, slightly thicker than a pencil, using the rover’s coring bit. Samples collected by Perseverance would be returned to Earth by a future Mars mission.

Tomorrow’s picture: large rocks in space

名为罗切特的火星岩块
影像提供: NASA, JPL-Caltech

说明: 这幅由毅力号火星车避障相机摄于第180火星日（8月22日）的清晰影像，呈现火星耶杰罗坑底密布岩石的一片原野。在影像的左下角，可见到这部火星车直径52.5公分的一个可转向前轮，中央附近则有的昵称为罗切特的大岩块。任务规画者并不是要避开罗切特岩块，而是想操控毅力号伸出2米长的机械臂，去研磨这块岩石的表面，以确认它的质地是否够均匀，适合用毅力号的取芯钻头，取出一条比铅笔稍粗一点的样本。由毅力号收集的样品，将由未来的火星任务携回地球。

明日的图片: large rocks in space