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The Bruce Murray Space Image Library

At the Edge of Darkness

At the Edge of Darkness

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NASA/Johns Hopkins University Applied Physics Laboratory/Carnegie Institution of Washington

At the Edge of Darkness
The MESSENGER spacecraft returned this close view of Petronius Crater near the north pole of Mercury. The floor of the 36-km crater, which never sees the sun, hides deposits of water ice.

Most NASA images are in the public domain. Reuse of this image is governed by NASA's image use policy.

Original image data dated on or about February 19, 2013

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