It’s been nearly 50 years since the Viking 1 lander snapped the first image from the surface of Mars. And yet, until recently, that landscape remained silent to the human ear. Now, thanks to two ...
In 1947, Chuck Yeager flew the X-1, an experimental rocket plane, over Rogers Dry Lake in Southern California and broke the sound barrier for the first time. To pull it off, he had to fly his plane at ...
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