12.31.24

Mark Your Calendars! Juno Image Featured in NASA’s 2025 Science Calendar

NASA’s science calendar for 2025, along with wallpaper backgrounds for desktops and mobile devices, is now available for download. The October page features two striking images captured by the JunoCam instrument.

The main image is one of the sharpest pictures of Jupiter’s volcanic moon Io in a generation. During its close flyby of Jupiter’s moon Io on Dec. 30, 2023, Juno captured some of the most detailed imagery ever of Io’s volcanic surface. In this image, taken by the JunoCam instrument from about 930 miles (1,500 kilometers) above the moon, Io’s night side is illuminated by “Jupitershine,” which is sunlight reflected from the planet’s surface. The image shows evidence of an active plume, tall mountain peaks, and lava lakes. Juno has been exploring Jupiter and its large moons Io, Ganymede, and Europa since the spacecraft’s arrival at the planet in 2016. Originally designed to operate during eight Jupiter flybys in one of the solar system’s harshest radiation environments, JunoCam has continued to collect stunning images as Juno completed 57 orbits around the planet in early 2024.

The visible-light color images from JunoCam are made available for processing by citizen scientists around the world. This view of Io was processed by Emma Wälimäki.

A second image on the calendar page shows a JunoCam view of Jupiter’s Moon Europa captured on Sept. 29, 2022 and processed by Björn Jónsson.

An excerpt from Nasas calendar for the month of October 2025 the top half is a large photo of Jupiters moon Io with the right half illuminated and the left half more shaded The bottom half features a smaller inset photo which is a a view of Europa next to calendar grid of the month
The October entry in NASA’s 2025 Science Calendar features two images of Jupiter’s moons captured by the JunoCam instrument aboard NASA’s Juno spacecraft: a view of Io processed by citizen scientist Emma Wälimäki, and a view of Europa processed by citizen scientist Björn Jónsson.