Mars 'copter Ingenuity still flying high, spots hazards for the Perseverance rover

Last week, engineers at the NASA/Caltech Jet Propulsion Laboratory let the Mars Ingenuity helicopter fly for the ninth time, an amazing achievement that means the semi-autonomous drone has now made four flights past its mission's nominal five. Images it took on this latest jaunt showed terrain ahead of the rover Perseverance's path, including marking some areas that would prove dangerous for the rover to tread.

The helicopter landed on Mars along with Perseverance, tucked underneath the two-ton...