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Pictures of the moons of Mars: Phobos and Deimos
Planet Mars Home | Close-up Pictures of Mars
Click on any picture to get a larger image of that picture.
Picture of asteroid 951Gaspra at the top, compared using the correct scale to Deimos on the lower left and Phobos at the lower right hand side. Gaspra is 17 kilometers long.
Picture of Phobos taken by the Mars Global Surveyor. Phobos is the largest of the two moons of Mars. The white box shows the area covered in the photo just below this photo on this webpage.
The crater Stickney covers the top left hand side of this picture - it is nearly half the size of Phobos itself. Many other smaller craters can be seen.
A color picture of Phobos by the Viking spacecraft. Phobos has an average diameter of 22 kilometers. The orbit of Phobos is decaying - Phobos is getting closer and closer to Mars. In about the next 50 million years Phobos might be torn apart by Mars and become a ring around Mars.
A color picture of Deimos by the Viking spacecraft. Deimos has an average diameter of 14 kilometers. Asaph Hall discovered Phobos and Deimos in 1877. Deimos appears much smoother than Phobos because material from its surface partially fills and covers many of its impact craters.
Picture of Phobos showing its temperature as measured by the Thermal Emission Spectrometer (TES) on the Mars Global Surveyor in 1998.
Questions about the moons of the planet Mars
Lets see what you have learned from these pictures ...
- Which moon of Mars is the largest?
- What is larger, the moons of Mars or the asteroid Gaspra?
- Does the moons of Mars and the asteroid Gaspra look more or less the same?
- What can be seen on the moons of Mars?
- How would you describe the shapes of the moon of Mars?
- What color is the moons of Mars?
- What are the 2 moons of Mars called?
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