ESA's Juice blasts off to squeeze secrets from Jupiter's moons
The European Space Agency's Juice probe began its eight-year trek to study Jupiter and its major moons on Friday, after launching into space aboard an Ariane 5.
The heavy-lifting rocket blasted off from Europe's spaceport in French Guiana at 1414 CEST today. ESA had hoped to send Juice off into space earlier this week, though the flight was postponed due to risk of lightning. Mission control working at the agency's European Space Operations Centre confirmed the spacecraft launched successfully, and has now spread its 27-metre-long solar arrays.will get its instruments into gear over the next two-and-a-half weeks and then shift between hibernating and performing maneuvers to take it to Jupiter. The next major milestone will be a lunar-Earth flyby in April 2024, its first out of four gravity assist operations that will nudge it toward the gas giant.
"Over the next six years the spacecraft needs to conduct several flybys around Earth and Venus in order to gain sufficient energy to arrive at Jupiter by 2031," Gaitee Hussain, ESA's Head of the Science Division, told"A particular challenge is the flyby around Venus during which the spacecraft will be subjected to a temperature as high as 250 degrees C. We need to use Juice's 2.
On top of extreme temperature fluctuations, Juice will have to deal with Jupiter's intense magnetic field and high radiation and plasma levels. Engineers at ESA made sure to shield the probe's hardware and avoid Juice staying too long in the Solar System's most treacherous regions to prevent frying its electronics, particularly around Jupiter's Europa moon where it will only perform flybys.
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