This magnified, cropped image showing Jupiter and 3 of its moons was taken by NASA’s OSIRIS-REx spacecraft’s MapCam instrument during optical navigation testing for the mission’s Earth-Trojan Asteroid Search. The image shows Jupiter in the center, the moon Callisto to the left and the moons Io and Europa to the right. Ganymede, Jupiter’s fourth moon, is also present in the image, but is not visible as it is crossing in front of the planet.
The image was taken at 3:38 a...
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