Your arm on Mars has unusual powers. For one thing
it is nearly 2 meters long, has a scoop and grapple built into
its hand, and has a camera built into
its forearm. For another, it will soon deploy your ear -- a
sensitive seismometer that will listen for distant rumblings -- onto the surface of Mars. Your
SEISmomet-ear is the orange box in the foreground, while the gray dome behind it will be its protective cover. Your arm is attached to the
InSight robotic lander that touched down on
Mars two weeks ago. Somewhat unexpectedly, your ear has
already heard something -- slight vibrations caused by the Martian wind flowing over the solar panels. Light from the
Sun is being collected by the
solar panels, part of one being visible on the far right. Actually, at the present time, you have
two arms operating on Mars, but they are separated by about 600 kilometers. That's because your other active arm is connected to the Curiosity rover exploring a distant crater. Taken a week ago,
rusty soil and rocks are visible in the
featured image beyond Insight, as well as the
orange sky of Mars.