Developing the world's smallest gear wheel

Ever smaller and more intricate—without miniaturization, we wouldn't have the components today that are required for high-performance laptops, compact smartphones or high-resolution endoscopes. Research is now being carried ...

Mars 2020 rover gets its wheels

In this image, taken on June 13, 2019, engineers at NASA's Jet Propulsion Laboratory in Pasadena, California, install the starboard legs and wheels—otherwise known as the mobility suspension—on the Mars 2020 rover. They ...

Mars rover Opportunity on walkabout near rim

NASA's senior Mars rover, Opportunity, is examining rocks at the edge of Endeavour Crater for signs that they may have been either transported by a flood or eroded in place by wind.

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