
Atlas V 551 | Juno
United Launch Alliance · Atlas V 551 · Space Launch Complex 41, Cape Canaveral SFS, FL, USA
United Launch Alliance's 54th launch · 8th this year · humanity's 5,147th orbital launch attempt
The launch vehicle successfully inserted its payload(s) into the target orbit(s).
Window: Aug 5, 16:25 – Aug 5, 16:25 UTC
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Juno
Juno is a NASA space probe orbiting the planet Jupiter. It was built by Lockheed Martin and is operated by NASA's Jet Propulsion Laboratory. The spacecraft was launched from Cape Canaveral Air Force Station as part of the New Frontiers program. Juno's mission is to measure Jupiter's composition, gravitational field, magnetic field, and polar magnetosphere.
Planetary Science · Jupiter Orbit (Jupiter Orbit)
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Juno reveals surprising subsurface tempertures at Io, remarkably smooth surface
Following two flybys of Jupiter’s innermost Galilean moon Io, teams using data from NASA’s Juno…

Mapping Io’s Hidden Heat With NASA’s Juno
Description This graphic illustrates the areas of Jupiter’s moon Io sampled by the Microwave Radiometer (MWR) instrument aboard NASA’s Juno spacecraft during two close flybys. The black overlapping lines show the instrument’s footprints during Perijove 57 on Dec. 30, 2023, when the spacecraft primarily mapped the northern hemisphere. The blue lines represent Perijove 58 on […]

NASA’s Juno Peers Beneath Io’s Surface
Description This map represents data captured by the Microwave Radiometer (MWR) aboard NASA’s Juno spacecraft, indicating heat rising from just beneath the surface of Jupiter’s moon Io. While infrared instruments measure the temperature of the moon’s surface, the lowest frequency microwave channels (0.6 and 1.25 gigahertz) on the MWR can penetrate between about 6 and […]

NASA’s Juno Takes Temperature of Jupiter’s Fiery Moon Io
NASA’s Juno mission has provided the first measurements of the temperature below the surface of Jupiter’s moon Io, revealing significant heating within the shallow subsurface of the most volcanically active world in the solar system. Collected during two close flybys, the data also shows that most of Io’s surface is remarkably smooth and composed of […]
