Hephaestus Fossae

Image Credit: NASA/JPL/ASU

About this image

This VIS image shows part of Hephaestus Fossae. Hephaestus Fossae is a complex channel system in Utopia Planitia near Elysium Mons. It has been proposed that the channel formed by the release of melted subsurface ice during an impact event. Additionally, the nearby Elysium volcanic center created subsurface heating that may have played a part in creating both Hephaestus Fossae and Hebrus Valles to the north. Hephaestus Fossae is 633km long (393 miles).

Please see the THEMIS Data Citation Note for details on crediting THEMIS images.

Context

Latitude: 20.3523

Longitude: 123.706

Orbit Number: 102288

Captured: 2025-01-04 17:16

Posted to Web: Fri, 2025-10-17

Instrument: VIS

Image Width: 256 pixels (19 km)

Image Height: 3792 pixels (280 km)

Vertical Resolution: 0.073999 km/pixel

Horizontal Resolution: 0.0747813 km/pixel

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