This illustration show's NASA's Juno mission approaching Jupiter. Juno used distant stars to chart its course across the void. NASA/JPL-Caltech hide caption

toggle caption NASA/JPL-Caltech

'Star Trackers' Help Juno Find Its Way

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Launched from Earth in 2011, the Juno space probe has nearly reached Jupiter. If all goes as hoped, the probe will repeatedly dive between the planet and intense belts of charged particle radiation, in an orbit that will take it from pole to pole. JPL/NASA hide caption

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Juno Space Probe Is Set To Enter Jupiter's Orbit On Monday

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A view from Earth of a slender crescent moon in close proximity to the two brightest planets in the sky, Venus and Jupiter. Justin Lane/epa/Corbis hide caption

toggle caption Justin Lane/epa/Corbis

Track Jupiter's Path Like An Ancient Babylonian

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An artistic conception of the Jupiter-like exoplanet, 51 Eridani b, seen in the near-infrared light that shows the hot layers deep in its atmosphere glowing through clouds. Danielle Futselaar & Franck Marchis, SETI Institute hide caption

toggle caption Danielle Futselaar & Franck Marchis, SETI Institute

The mosaic was constructed from individual images obtained by the Solid State Imaging (SSI) system on NASA's Galileo spacecraft during six flybys of Europa between 1996 and 1999. NASA/JPL-Caltech/University of Arizona hide caption

toggle caption NASA/JPL-Caltech/University of Arizona