Solar Impulse, a solar-powered plane with the wingspan of a Boeing 747, took off from a Switzerland-based airport at a maximum ground speed of 28mph and soared for 90-minutes, peaking at 3280-feet before descending. Video after the break. Click here for first picture in gallery.

Using almost 12,000 solar cells, rechargeable lithium batteries and four electric motors, Piccard and co-pilot Andre Borschberg plan to take the plane around the world with stops to allow them to switch over and stretch after long periods in the cramped cockpit.

[via Dailymail]