Ask sisters Kimberly and Rebecca Yeung about their Labor Day weekend and they could legitimately say, It was out of this world.
With a craft they constructed using light-weight wood and arrow shafts, Kimberly, 8, and Rebecca, 10, launched a weather balloon that reached a height of 78,000 feet. How do they know? Other than the two GoPro cameras aboard that recorded the flight, the girls outfitted their craft with a flight computer to record data, such as temperature and distance traveled.





