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The Bruce Murray Space Image Library

Butterfly vent

Butterfly vent

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NASA / JHUAPL / CIW

Butterfly vent
This color view of Mercury's surface highlights what may be an old volcanic vent. Just to the right of center, within a brown-red patch, is an irregularly shaped 30-km depression depression, in this case the irregular shape is a bit like a butterfly. While most of these suspected volcanic vents are located within impact craters (like this one), the butterfly-shaped vent is not clearly associated with any crater. It also appears that it may be older than other vents, resulting in more subdued details and colors.

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 July 11, 2014

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