Tag Archives: channels

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: Martian meanders and scroll-bars

This is a portion of an inverted fluvial channel in the region of Aeolis / Zephyria Plana, at the Martian equator. Channels become inverted when the sediments filling them become more resistant to erosion than the surrounding material. Here, the … Continue reading

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THEMIS: Morning light on Reull Vallis

THEMIS Image of the Day, January 27, 2017. Today’s VIS image, made soon after local sunrise, shows a small portion of Reull Vallis. Reull Vallis is one of the major channels entering eastern Hellas Planitia. More THEMIS Images of the … Continue reading

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HiRISE: Pits and channels of Hebrus Valles

The drainages in this image are part of Hebrus Valles, an outflow channel system likely formed by catastrophic floods. Hebrus Valles is located in the plains of the Northern lowlands, just west of the Elysium volcanic region. Individual channels range … Continue reading

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THEMIS: Crater channels, gullies, dunes & a pit

THEMIS Image of the Day, January 25, 2017. This VIS image shows part of an unnamed crater in Terra Cimmeria. The crater rim is dissected by gullies, and the central pit has several channels entering from the higher elevation of … Continue reading

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HiRISE: Smooth and fractured deposits in Eridania valleys

The ancient highland channels in this image empty into the Eridania Basin (not visible), a large topographically low enclosure with smooth-appearing terrains that may have once contained a large paleolake or ancient sea. Water in these channels flowed to the … Continue reading

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THEMIS: Channels in Noachis Terra craters

THEMIS Image of the Day, January 11, 2017. This VIS image shows several channels in and around unnamed craters in Noachis Terra. (If the channels look more like tubes or worms, remember that the sunlight is coming from the right … Continue reading

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THEMIS: Mawrth Vallis channel in false color

THEMIS Image of the Day, December 20, 2016. Today’s false color image shows part of Mawrth Vallis. Not far from where this channel winds through highlands lies one of the candidate landing sites for the Curiosity rover, which was eventually … Continue reading

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THEMIS: Channel cutting through Terra Sirenum

THEMIS Image of the Day, December 14, 2016. The channel in this VIS image is located in Terra Sirenum. More THEMIS Images of the Day by geological topic.

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THEMIS: Channels winding through Noachis Terra

THEMIS Image of the Day, December 1, 2016. Numerous channels dissect the higher elevation material at the top of this image. This image is located in Noachis Terra. More THEMIS Images of the Day by geological topic.

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