Helicopters on Mars may sound like something from a science fiction novel — or perhaps just a typical "Doctor Who" episode. But actually, they're not fully confined to the world of sci-fi; after all, ...
In the forests and canyons of the Northwestern US, helicopters are now doing something that would have horrified river engineers a generation ago: dropping thousands of tree trunks straight into the ...
The robot flew 72 times, serving as a scouting partner to the Perseverance rover, aiding in the search for evidence that there was once life on the red planet. By Kenneth Chang Kenneth Chang has ...
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