• Microwave Radiometer (MWR)

      Juno will use its Microwave Radiometer (MWR) instrument to probe deep into Jupiter’s atmosphere, learning about its structure and chemical composition. To see what’s under the planet’s cloud tops, the MWR will measure the microwave radiation emitted from inside the planet. This radiation also carries imprinted upon it information about the amount of water in the atmosphere – a key piece of missing information about Jupiter.