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Hubble Charts Changes on the Red Planet

When Hubble took this photograph of Mars in 1999, Mars was 87 million km (54 million miles) away, or more than 200 times the distance from Earth to the Moon.

The photo was made at the height of Martian summer in the northern hemisphere. The carbon dioxide (dry ice) portion of the north polar ice cap has largely evaporated, revealing the permanent cap of water ice underneath. A cyclonic storm is churning nearby.


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The Hubble Space Telescope captured this view of the planet Mars in the spring of 1999. Surface features as small as 12 miles (19 kilometers) across are visible, including numerous craters, cloud-shrouded volcanoes, and a massive cyclonic storm churning near the north polar ice cap.

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