Key Radar Antenna Stuck On Europe's Jupiter-Bound Spacecraft

The European Space Agency appears to have a slight problem: a critical antenna is jammed on their Jupiter-bound spacecraft launched two weeks ago. From the Associated Press: The 52-foot (16-meter) radar antenna on Juice unfolded only one-third of the way following liftoff, according to the space agency. Engineers suspect a tiny pin may be protruding. Flight controllers in Germany plan to fire the spacecraft's engine in hopes of shaking the pin loose. If that doesn't work, they said they have plenty of time to solve the problem. Juice, short for Jupiter Icy Moons Explorer, won't reach the giant planet until 2031. It's taking a roundabout path to get there, including gravity-assist flybys of Earth and our moon, and Venus. The radar antenna is needed to peer beneath the icy crust of three Jupiter moons suspected of harboring underground oceans and possibly life, a major goal of the nearly $1.8 billion mission. Its targets include Callisto, Europa and Ganymede, the largest moon in the solar system.

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