Added 1 new A* page:'NASA's Mars helicopter takes flight, 1st for another planet' (AP News)
NASA's "Ingenuity" robot weights 4 lbs, and flies on two 4-foot-long blades spinning five times faster than they'd have to on Earth in order to achieve lift in the thin Martian atmosphere, just 1% the density of Earth's.
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The original 16" x 6.75" watercolor art for today's new A* page is up for auction on eBay. : )
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