It's 'a matter of millimeters,' ESA says, as it explores options for setting the antenna free.
Unfortunately, issues arose when ESA set out to deploy the spacecraft's 52-foot-long radar antenna. The antenna is partially deployed and has extended to roughly a third of its full length. ESA believes the problem may have been caused by a tiny pin that has not made way.If ESA isn't able to fix the issue, the JUICE mission will go ahead with its other science instruments.
"Every day the RIME antenna shows more signs of movement, visible in images from the Juice Monitoring Camera on board the spacecraft with a partial view of the radar and its mount," ESA wrote in its statement. One course of action ESA is considering is to perform an engine burn with JUICE to "shake the spacecraft a little." They could also rotate the spacecraft to warm its mount and radar by exposing it to the Sun. Whatever solution they try, ESA believes that "just a matter of millimeters could make the difference to set the rest of the radar free."
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