Pictures of the moon Europa
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Picture of the smooth, icy plains on Europa. The straight brown ridges might be frozen volcanic material. The blue surface is frozen water. Colors on this photograph have been enhanced to bring out these details.
Picture of Europa by the Voyager 2 spacecraft. The complex mess of stripes are cracks in the surface of Europa that have been filled by material from inside Europa. You can see on the photo that Europa does not have any visible mountains and impact craters. A 100 kilometer thick layer of ice over the whole moon make it appears so smooth.
Pictures of Europa by NASA's Galileo spacecraft. Europa might have an ocean. The shades of blue / green is icy plains. The dark reddish-brown lines are ridges and cracks in the surface of Europa - some over 3000 kilometers long.
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An artists impression of the interior of Europa.
Europa probably has a metallic core containing iron and nickel at its core (center). The core is surrounded by rocks (shown in dark brown).
Outside the layer of rocks is an ocean of water. This water might be frozen or in a liquid form. This ocean is shown in dark blue. The white is the surface layer of Europa. The surface shows a picture of Europa by NASA's Voyager spacecraft.
The possible internal structure of Europa is determined (deduced / inferred) by measuring the gravity and magnetic fields on Europa using instruments on NASA's Galileo spacecraft.
Some questions about these pictures of Europa (moon of planet Jupiter)
Lets see what you have learned from these pictures ...
- Describe what the moon Europa looks like?
- Does Europa have many impact craters?
- Describe what we will probably find in each of the layers of Europa's interior.
- How do astronomers and scientists determine what the inside of a planet or moon looks like?
- Which two spacecrafts took these pictures?
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