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New lidar technique could help robotic vehicles land safely on Mars

In a new study, scientists demonstrate a new lidar technique that could help robotic vehicles avoid hazards when landing during future missions to Mars or the moon. The method uses flash lidar to record full 3D images with a single laser pulse, which prevents the motion blur that is present with traditional lidar approaches.
Farzin Amzajerdian from NASA Langley Research Center will present the new findings at the Optica Laser Congress, 11–15 December 2022. The presentation, titled "Development of a 3D Flash Lidar for Terrain Sensing and Safe Landing on Planetary Bodies," will be presented on-site and online in a hybrid format.
"Lidar technology plays a critical role in future missions to the moon, Mars, and other solar system bodies since they require precision safe landing at specific locations where valuable resources may be found or may lead to important scientific discoveries," said principal investigator, Farzin Amzajerdian, Ph.D.
A streamlined design
Flash lidar is useful for several purposes throughout the process of landing robotic vehicles. As a vehicle descends to a surface, flash lidar can be used to generate 3D terrain maps from an altitude of several kilometers to reduce position error.
Will we ever go back to explore the ice giants? Yes, if we keep the missions simple and affordable

It's been over 35 years since a spacecraft visited Uranus and Neptune. That was Voyager 2, and it only did flybys. Will we ever go back? There are discoveries waiting to be made on these fascinating ice giants and their moons.