Image of the Day

This VIS image shows a cross section of the southwestern flank of Ascraeus Mons. Ascreaus Mons is the northernmost volcano of the three large Tharsis volcanoes. In order from north to south the v...

http://themis.asu.edu/zoom-20240426a

Today's VIS image shows part of Nili Patera. Nili Patera is the northern caldera in the immense volcanic complex of Syrtis Major Planum. The dunes are moving westward across the top of these anci...

http://themis.asu.edu/zoom-20240425a

Today's VIS image shows a section of Licus Vallis. Located in northern Terra Cimmeria, Licus Vallis is 240 km long (149 mi). Release Date:  Wed, 2024-04-24 Themes: 

http://themis.asu.edu/zoom-20240424a

Today's VIS image shows part of Zephyria Planum. Zephyria Planum is located south of Elysium Planitia. Long term winds have eroded the surface of Zephyria Planum, removing poorly cemented materia...

http://themis.asu.edu/zoom-20240423a

Today's VIS image shows a portion of Sirenum Fossae. The linear features are tectonic graben. Graben are formed by extension of the crust and faulting. When large amounts of pressure or tension a...

http://themis.asu.edu/zoom-20240422a

Today's VIS image is located on the northeastern flank of Arsia Mons. Arsia Mons is the southernmost of the Tharsis volcanoes. It is 450 km (270 miles) in diameter, almost 20 km (12 miles) high, ...

http://themis.asu.edu/zoom-20240419a

Ius and Tithonium Chasmata are located at the western end of Valles Marineris. Tithonium Chasma is north of Ius Chasma. Valles Marineris is over 4000 kilometers long (2495 miles), almost as wide ...

http://themis.asu.edu/zoom-20240418a

Today's VIS image is located on the western flank of Olympus Mons. Olympus Mons is the largest volcano in the solar system, reaching heights over 25 km (16 miles) tall from base to summit, with t...

http://themis.asu.edu/zoom-202404178898688a

This VIS image shows the upper elevations of Ascraeus Mons. Ascreaus Mons is the northernmost volcano of the three large Tharsis volcanoes. In order from north to south the volcanoes are Ascreaus...

http://themis.asu.edu/zoom-20240416a

Fossae are long linear depressions called graben and are formed by extension of the crust and faulting. When large amounts of pressure or tension are applied to rocks on timescales that are fast ...

http://themis.asu.edu/zoom-20240415a

In regions of poorly cemented surface materials it is possible to create large features due to just the action of the wind. The equatorial region between Olympus Mons and Apollinaris Mons is domi...

http://themis.asu.edu/zoom-20240412a

This VIS image shows a cross section of Pavonis Mons, including part of the summit caldera. A large volcanic crater known as a caldera is located at the summit of all of the Tharsis volcanoes. Th...

http://themis.asu.edu/zoom-20240411a

Today's VIS image shows a section of Naktong Vallis. Located in Terra Sabaea, Naktong Vallis is 670 km long (415 miles). Release Date:  Wed, 2024-04-10 Themes: 

http://themis.asu.edu/zoom-20240410a

Today's VIS image shows the surface between Aeolis Planum and Zephyria Planum in Elysium Planitia. Long term winds have eroded the surface in this region. Features align with wind direction, in t...

http://themis.asu.edu/zoom-20240409a

Today's VIS image shows a unnamed crater located in the northern plains. At some point after the crater was formed a layer of material covered the entire region. The coating layer is being eroded...

http://themis.asu.edu/zoom-20240408a

In planetary nomenclature, the descriptor term chaos means "distinctive area of broken terrain". The general morphology of chaos is steep-sided mesas in close proximity. This image is located nor...

http://themis.asu.edu/zoom-20240405a

In planetary nomenclature, the descriptor term chaos means "distinctive area of broken terrain". The general morphology of chaos is steep-sided mesas in close proximity. The initial breakup of th...

http://themis.asu.edu/zoom-20240404a

Today's VIS image shows part of an unusual unnamed crater in northern Arabia Terra. The crater is not round, has different floor elevations and a fairly steep inner rim. Release Date:  Wed,...

http://themis.asu.edu/zoom-20240403a

Today's VIS image shows part of the upper elevations of Olympus Mons, including part of the summit caldera (top of image). Scarps and extensional features (graben) record multiple stages of calde...

http://themis.asu.edu/zoom-20240402a

This VIS image shows part of the summit of Ascraeus Mons. Ascraeus Mons is the northernmost and tallest of the three large aligned Tharsis volcanoes. Calderas are found at the tops of volcanoes a...

http://themis.asu.edu/zoom-20240401a

Today's VIS image is located Arabia Terra near Chryse Planitia. The image shows several different surface layers. Release Date:  Fri, 2024-03-29 Themes: 

http://themis.asu.edu/zoom-20240329a

Ius and Tithonium Chasmata are located at the western end of Valles Marineris. Tithonium Chasma is north of Ius Chasma. Valles Marineris is over 4000 kilometers long (2495 miles), almost as wide ...

http://themis.asu.edu/zoom-20240328a

Today's VIS image shows a cross section of Coprates Chasma. The floor of the canyon is covered by large landslide deposits. Coprates Chasma is one of the numerous canyons that make up Valles Mari...

http://themis.asu.edu/zoom-20240327a

Today's VIS image shows the upper elevations of Olympus Mons, including part of the summit caldera (top of image). Scarps and extensional features (graben) record multiple stages of caldera colla...

http://themis.asu.edu/zoom-20240326a

Today's VIS image shows a cross section of Coprates Chasma. Sand dunes and a large landslide deposit are visible on the floor of the canyon. Coprates Chasma is one of the numerous canyons that ma...

http://themis.asu.edu/zoom-20240325a

This VIS image shows a cross section of Pavonis Mons, including the summit caldera. A large volcanic crater known as a caldera is located at the summit of all of the Tharsis volcanoes. These cald...

http://themis.asu.edu/zoom-20240322a

This VIS image of Olympia Undae was collected during north polar spring. The dunes are still partially covered by the winter frosts; as the region heats up the frost will dissipate to reveal the ...

http://themis.asu.edu/zoom-20240321a

Today's VIS image shows the surface between Aeolis Planum and Zephyria Planum in Elysium Planitia. Long term winds have eroded the surface in this region. Ridge features align with wind direction...

http://themis.asu.edu/zoom-20240320a

Today's VIS image shows two unnamed craters located in Tyrrhena Terra. The larger crater has several landslide deposits. There are two on the right side of the image and then a large one in the c...

http://themis.asu.edu/zoom-20240319a

A large volcanic crater known as a caldera is located at the summit of all of the Tharsis volcanoes. These calderas are produced by massive volcanic explosions and collapse.Today's VIS image show...

http://themis.asu.edu/zoom-20240318a

Today's VIS image shows the lower elevations of Olympus Mons. Near the bottom of the image is part of the escarpment that marks the edge of the volcano. The escarpment is a cliff face that can be...

http://themis.asu.edu/zoom-20240315a

Today's VIS image shows the upper elevations of Olympus Mons, including part of the summit caldera. Scarps and extensional features (graben) record multiple stages of caldera collapse at the summ...

http://themis.asu.edu/zoom-20240314a

Today's VIS image is located on the eastern flank of Olympus Mons. Olympus Mons is the largest volcano in the solar system, reaching heights over 25 km (16 miles) tall from base to summit, with t...

http://themis.asu.edu/zoom-20240313a

Today's VIS image shows a cross section of Coprates Chasma. Coprates Chasma is one of the numerous canyons that make up Valles Marineris. The chasma stretches for 960 km (600 miles) from Melas Ch...

http://themis.asu.edu/zoom-20240312a

Bonestell Crater is a relatively young crater located in Acidalia Planitia. The grooved surface of the ejecta blanket is evident in this VIS image. Dust blown into the crater and the downslope mo...

http://themis.asu.edu/zoom-20240311a

Today's VIS image shows a section of Mamers Valles. Mamers Valles originates near Cerulli Crater in northern Arabia Terra, and after a short section near the crater where flow is to the south, fl...

http://themis.asu.edu/zoom-20240308a

The linear depressions in today's VIS image are part of Nili Fossae. Nili Fossae is a collection of curved faults and down-dropped blocks of crust between the faults called graben. The graben lie...

http://themis.asu.edu/zoom-20240307a

Today's VIS image shows the western flank of Olympus Mons. Numerous thin lava flows are visible. The small raised channel is one mode of lava emplacement where the flow builds up cooling levees a...

http://themis.asu.edu/zoom-20240306a

Multiple dune fields surround the north polar cap. This unnamed region of dunes is located between Olympia Undae (the largest dune field) and Olympia Mensae. This image was acquired during northe...

http://themis.asu.edu/zoom-20240305a

Today's VIS image shows part of eastern Candor Chasma. Candor Chasma is one of the largest canyons that make up Valles Marineris. It is approximately 810 km long (503 miles) and is divided into t...

http://themis.asu.edu/zoom-20240304a

This VIS image shows a cross section of Pavonis Mons, including part of the summit. Pavonis Mons is the central volcano of the three large Tharsis volcanoes. In order from north to south the volc...

http://themis.asu.edu/zoom-20240301a

Today's VIS image shows part of eastern Candor Chasma. Candor Chasma is one of the largest canyons that make up Valles Marineris. It is approximately 810 km long (503 miles) and is divided into t...

http://themis.asu.edu/zoom-20240229a

Today's VIS image is located on Eumenides Dorsum. The surface in this image has been eroded by the wind to form features called yardangs. Yardangs form in a poorly cemented material where the win...

http://themis.asu.edu/zoom-20240228a

Today's VIS image shows an unnamed region of chaos terrain located north of Kasei Valles. In planetary nomenclature, the descriptor term chaos means "distinctive area of broken terrain". The gene...

http://themis.asu.edu/zoom-20240227a

Today's VIS image shows part of the western half of Jezero Crater. The Perserverance Rover is located in this part of the crater – near the delta deposit (upper right side of image) formed by t...

http://themis.asu.edu/zoom-20240226a

This VIS image of Olympia Undae was collected during early north polar summer. The dunes are mostly frost free at this point in the year. The density of dunes and the alignments of the dune crest...

http://themis.asu.edu/zoom-20240223a

This VIS image shows part of Cerunius Fossae. The linear depressions are fault bounded features called graben. Graben are formed by extension of the crust and faulting. When large amounts of pres...

http://themis.asu.edu/zoom-20240222a

Today's VIS image is located on the northwestern flank of Alba Mons. This region is highly dissected by channels. Alba Mons is a broad volcano, surrounded by graben features created by a huge vol...

http://themis.asu.edu/zoom-20240221a

Today's VIS image shows a section of Scamander Vallis. Scamander Vallis is located in northern Terra Sabaea. The channel is 269km (167 miles) long. Release Date:  Tue, 2024-02-20 Themes:�...

http://themis.asu.edu/zoom-20240220a

This VIS image shows a section of Ma'adim Valles. Ma'adim Valles is an outflow channel that arises in the southern lowlands and flows northward into Gusev Crater, the home of the MER Spirit rover...

http://themis.asu.edu/zoom-20240219a