Explanation: Daedalus warned Icarus that if he flew too high, the Sun would melt his wings. Apparently, nobody gave the ERAST Pathfinder-Plus aircraft a similar warning. Earlier this month, not only did Pathfinder-Plus fly higher than any previous propeller-driven aircraft - its wings converted sunlight into power. Pictured, Pathfinder-Plus is flying above Hawaii soon after soaring to a record height of 24,700 meters. What's more, Pathfinder-Plus is only a prototype -- future aircraft in the ERAST program may fly higher. Pathfinder's wings spread nearly 30 meters, and its total mass is only about 270 kilograms. NASA's Pathfinder-Plus is flown by remote control, and can stay aloft for weeks at a time.

Tomorrow's picture: The Moons Of Earth

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Authors & editors: Robert Nemiroff (MTU) & Jerry Bonnell (USRA)
NASA Web Site Statements, Warnings, and Disclaimers
NASA Official: Jay Norris. Specific rights apply.
A service of: LHEA at NASA / GSFC
& Michigan Tech. U.