Engineers at NASA’s Kennedy Space Center are inventing robotic drones known as Extreme Access Flyers which are able to withstand the inhospitable conditions of space and "hunt and gather" samples from other worlds in places that are inaccessible to rovers.
The machines are being built to work in spite of the thin atmosphere of Mars, or the airless voids of asteroids and the moon. By using a lander spacecraft as a base to replenish batteries and propellants between flights, scientists envision that Extreme Access Flyers will be able to travel to shaded regions of a hard-to-reach crater and pull out soil samples.
Researchers have assembled several models to test aspects of the final machine. One model is a large quad-copter about five feet across with ducted fans. This is about the size of the prototype the team had in mind for a mission in space.
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