A solar-powered airplane completed the first ever 24-hour non-stop flight today, confirming that it is possible to gather enough energy from the sun during the daytime to remain flying at night. Experts believe that the plane and others like it could possibly stay in the air indefinitely by charging its batteries with built-in solar panels.The "Solar Impulse" is a very large aircraft with a 207-foot wingspan. It's the product of 7 years of planning and engineering by a group of scientists based in Switzerland. Their next goal is to circle the globe using nothing but sun-powered electricity.
Learn some mo': Solar plane completes historic 24-hour flight
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