Tag Archives: fluvial landforms

THEMIS: Naktong Vallis in Terra Sabaea

Posted on August 29, 2019 by rburnham

THEMIS Image of the Day, August 29, 2019. Today’s VIS image shows a section of Naktong Vallis. Naktong Vallis is located in Terra Sabaea. Explore more THEMIS Images of the Day by geological subject.

Posted in Reports | Tagged , , , , , , , , , , , , | Comments Off

THEMIS: Jezero Crater delta landing site

Posted on August 12, 2019 by rburnham

THEMIS Image of the Day, August 12, 2019. At the top of today’s VIS image is a delta deposit that was created by the flow from the rim channel into the crater. Deltas form when sediments settle out due to … Continue reading →

Posted in Reports | Tagged , , , , , , , , , , | Comments Off

Evidence for fluvial deposition in Arabia Terra

Posted on July 24, 2019 by rburnham

[Editor’s note: From a paper by Joel Davis and six co-authors recently published in the Journal of Geophysical Research.] A Diverse Array of Fluvial Depositional Systems in Arabia Terra: Evidence for mid‐Noachian to Early Hesperian Rivers on Mars • Fluvial … Continue reading →

Posted in Reports | Tagged , , , , , , , , , , , , , | Comments Off

THEMIS: Streamlined islands in Athabasca Valles

Posted on July 2, 2019 by rburnham

THEMIS Image of the Day, July 2, 2019. This VIS image shows part of the channel called Athabasca Valles. Several streamlined islands are visible at the top of the image. The source of the flood was likely an outburst of … Continue reading →

Posted in Reports | Tagged , , , , , , , , , , , , | Comments Off

HiRISE: Transition

Posted on July 1, 2019 by rburnham

Transition. This image shows where a fluvial channel changes from a depression to an inverted high standing channel in Terra Sirenum. That change likely marks the spot where the material was possibly elevated and more resistant to erosion. HiRISE Picture … Continue reading →

Posted in Reports | Tagged , , , , , , , , , , , , | Comments Off

HiRISE: In the land of Terra Sabaea

Posted on May 24, 2019 by rburnham

In the land of Terra Sabaea. The rationale for this observation is to look at the fluvial features and diverse composition of the terrain. Terra Sabaea is fairly large and parts of it are found in five quadrangle regions of … Continue reading →

Posted in Reports | Tagged , , , , , , , , , | Comments Off

Rivers raged on Mars late into its history

Posted on April 1, 2019 by rburnham

Long ago on Mars, water carved deep riverbeds into the planet’s surface — but we still don’t know what kind of weather fed them. Scientists aren’t sure, because their understanding of the Martian climate billions of years ago remains incomplete. … Continue reading →

Posted in Reports | Tagged , , , , , , , , | Comments Off

THEMIS: Near the river

Posted on March 1, 2019 by rburnham

THEMIS Image of the Day, March 1, 2019. This false color image contains several channel features. Towards the top of the image are several stream-lined islands, created by liquid flow eroding preexisting rock. The islands have a tear-drop shape, with … Continue reading →

Posted in Reports | Tagged , , , , , , , , , , , | Comments Off

Mars Express: Signs of ancient flowing water

Posted on February 21, 2019 by rburnham

These images from ESA’s Mars Express satellite show a branching, desiccated system of trenches and valleys, signs of ancient water flow that hint at a warmer, wetter past for the Red Planet. We see Mars as a cold, dry world, … Continue reading →

Posted in Reports | Tagged , , , , , , , , , , | Comments Off

THEMIS: Rolling down into Argyre Planitia

Posted on November 27, 2018 by rburnham

THEMIS Image of the Day, November 27, 2018. Today’s VIS image shows several small channels. These channels are along the break in topography, that leads down into Argyre Planitia. Argyre Planitia and Hellas Planitia are deep basins in the southern … Continue reading →

Posted in Reports | Tagged , , , , | Comments Off