月球壁纸
by Motiv Space Systems, Inc.
NASA Image Library · 公有领域（Public Domain）
关于这张图
In early 2022, the Cold Operable Lunar Deployable Arm (COLDArm) project – led by NASA's Jet Propulsion Laboratory in Southern California – successfully integrated special gears into pieces of a robotic arm that is planned to perform a robot-controlled lunar surface experiment with imagery in the coming years. These bulk metallic glass (BMG) gears, integrated into COLDArm's joints and actuators, were developed through the Game Changing Development bulk metallic glass gears project to operate at extreme temperatures below minus 280 degrees Fahrenheit (minus 173 degrees Celsius). The gear alloys…
