Tag Archives: Nirgal Vallis

THEMIS: Channels of Nirgal Vallis

THEMIS Image of the Day, March 2, 2017. This VIS image shows a portion of Nirgal Vallis. A tributary of the channel is seen on the left side of the image, with the main channel crossing the image from left … Continue reading

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HiRISE: Terrain northeast of Nirgal Vallis

Terrain northeast of Nirgal Vallis. Beautiful Mars series.

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HiRISE: Gullies and bedrock in Nirgal Vallis

The gullies in this image are within the valley wall of an ancient channel — Nirgal Vallis — a testament to flowing water in Mars’ ancient past. However, the formation of gullies are still the subject of much debate with … Continue reading

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HiRISE: Possible phyllosilicates in Nirgal Vallis

Possible phyllosilicates in Nirgal Vallis. Beautiful Mars series.

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