All-solar plane Solar Impulse has already successfully flown from Switzerland to Belgium. Now it’s trekking across the U.S., and you can watch its progress with live video feed of the cockpit and mission control. You can also track it with the live map here.

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Solar Impulse ain’t exactly a passenger plane — more of a beefed-up hang glider. But it’s still a big deal for it to be able to traverse these distances on solar power alone. The current leg of its trip will take the plane from the Bay Area to Phoenix, but it’s in it for the long haul, crossing the entire country in the next few weeks.

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