Discovery of life in solid rock deep beneath sea may inspire new search for life on Mars: Bacteria live in tiny clay-filled cracks in solid rock millions of years old — ScienceDaily

Newly discovered single-celled creatures living deep beneath the seafloor have provided clues about how to find life on Mars. These bacteria were discovered living in tiny cracks inside volcanic rocks after researchers perfected a new method cutting rocks into ultrathin slices to study under a microscope. Researchers estimate that the rock cracks are home to a community of bacteria as dense as that of the human gut, about 10 billion bacterial cells per cubic centimeter.
— Read on www.sciencedaily.com/releases/2020/04/200402080506.htm

Curiosity, your sensors make me curious, who created them?

Seventeen Cameras on Curiosity
Graphic of Cameras on NASA's Curiosity rover.

This graphic shows the locations of the cameras on NASA’s Curiosity rover. The rover’s mast features seven cameras: the Remote Micro Imager, part of the Chemistry and Camera suite; four black-and-white Navigation Cameras (two on the left and two on the right) and two color Mast Cameras (Mastcams). The left Mastcam has a 34-millimeter lens and the right Mastcam has a 100-millimeter lens.

There is one camera on the end of a robotic arm that is stowed in this graphic; it is called the Mars Hand Lens Imager (MAHLI).

There are nine cameras hard-mounted to the rover: two pairs of black-and-white Hazard Avoidance Cameras in the front, another two pair mounted to the rear of the rover, (dashed arrows in the graphic) and the color Mars Descent Imager (MARDI).

Credit: NASA/JPL-Caltech

From where do these sensors come? And what are they all for?

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