The JANUS camera onboard ESA’s Jupiter Icy Moons Explorer (Juice) is designed to take detailed, high-resolution photos of Jupiter and its icy moons.
JANUS will study global, regional and local features and processes on the moons, as well as map the clouds of Jupiter. It will have a resolution up to 2.4 m per pixel on Ganymede and about 10 km per pixel at Jupiter.
This image of planet Earth was taken during Juice’s lunar-Earth flyby at dawn on 20 August 2024. It shows the island of Hawai’i (the dark patch on the left).
The main aim of JANUS’s observations during the lunar-Earth flyby was to evaluate how well the instrument is working, not to perform scientific measurements.