Researchers from the University of Pennsylvania develop tiny levitating aircraft that could be used to investigate the surface of Mars.The inclusive design of the flyers was influenced by the folds or ridges of paper cardboard. Following the same notion, the engineers created the flyers with a hollow aluminum oxide body with ridges patterned by micro-channels.As of now, the researchers have been managed to fly tiny payloads in the form of silicone rings, inside a low-pressure test chamber that simulates the Martian environment. The team is now gearing up to miniaturizing chemical sensors that the tiny flyers could use to discover water on Mars.
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