This is a frame from an animation of a rotating globe of Jupiter's moon Ganymede, with a geologic map superimposed over a global color mosaic, incorporating the best available imagery from NASA's Voyager 1 and 2 spacecraft, and Galileo spacecraft.
Ganymede Global Geologic Map and Global Image Mosaic
To present the best information in a single view of Jupiter's moon Ganymede, a global image mosaic was assembled, incorporating the best available imagery from NASA's Voyager 1 and 2 spacecraft and NASA's Galileo spacecraft.
This graphic shows the location of water vapor detected over Europa's south pole in observations taken by NASA's Hubble Space Telescope in December 2012. This is the first strong evidence of water plumes erupting off Europa's surface.
The image taken by the Oschin Schmidt Telescope, shows the star AC +79 3888, also known as Gliese 445. NASA's Voyager 1 spacecraft, which is on a trajectory out of our solar system, is headed toward an encounter with AC +79 3888 (circled in red).
This artist's concept shows the general locations of NASA's two Voyager spacecraft. Voyager 1 (top) has sailed beyond our solar bubble into interstellar space. Voyager 2 (bottom) is still exploring the outer layer of the solar bubble.
Radio telescopes cannot see Voyager 1 in visible light, but rather "see" the spacecraft signal in radio light. This image of Voyager 1's signal on Feb. 21, 2013. At the time, Voyager 1 was 11.5 billion miles (18.5 billion kilometers) away.
This artist's concept shows NASA's Voyager spacecraft against a field of stars in the darkness of space as they travel farther away from Earth, on a journey to interstellar space, and will eventually circle around the center of the Milky Way galaxy.
Transitional Regions at the Heliosphere's Outer Limits
This artist's concept shows NASA's Voyager 1 spacecraft exploring a region called the 'depletion region' or 'magnetic highway' at the outer limits of our heliosphere, the bubble the sun blows around itself.
This image shows the low-energy charged particle instrument before it was installed on one of NASA's Voyager spacecraft in 1977. The instrument includes a stepper motor that turns the platform on which the sensors are mounted.
This artist's concept shows the different expected directions of the magnetic fields in interstellar space (black lines) and the magnetic field emanating from our sun (white lines) as NASA's Voyager 1 spacecraft travels northward out of the heliosphere.