NASA's Mars helicopter Ingenuity, originally expected to make five flights during 30 days on the Red Planet, has outlasted all projections for the length of its mission, which now is nearing seven months and a 16th flight.
"Any flight could be our last, frankly," Tzanetos said. "So it won't be a surprise to us if and when we see some of its parts fail. But that could be a fantastic discovery ... a new data point for us to understand flight on another planet."
One of Ingenuity's off-the-shelf parts is an altimeter from Boulder, Colo.-based SparkFun Electronics, which is a device that measures altitude.