UAHiRISE (NASA MRO)

This is a non-narrated clip featuring dunes within Pettit Crater, which is 92 kilometers in diameter and was named after Edison Pettit, an American astronomer (1890–1962). North is to the left; less than 5 km top to bottom. Music: “Because For Everything There is Someone” by pATCHES. NASA/JPL/UArizona

Gullies are common on steep slopes of many impact craters on Mars. When gullies were first observed, there was a lot of excitement surrounding them because similar features form on Earth through the action of liquid water. (Narration: Tre Gibbs. Black and white images are 5 km across; enhanced color images are 1 km.) NASA/JPL/UArizona https://uahirise.org/ESP_063775_1295

Sand dunes commonly form when particles that are being moved around by the wind find a natural barrier to accumulate and build a hill-like formation. Scientists study dunes because their shape and size can give us valuable information about the wind directions and speeds in current and past climates. (Narration: Tre Gibbs. Black and white images are 5 km across; enhanced color images are 1 km.) NASA/JPL/UArizona https://uahirise.org/ESP_063901_1710

This is a non-narrated clip showing a portion of what is called the “polar residual cap,” which refers to the frost that still persists throughout the Martian summer. The frost (and ice) is comprised of carbon dioxide. (Less than 5 km across.) Audio: “She Died Up There You Know,” by Dan Bodan. NASA/JPL/UArizona https://www.uahirise.org/PSP_004700_0930

Tooting Crater is one of the youngest craters on Mars that is larger than 20-kilometers in diameter. (Narrator: Tre Gibbs. Black and white images are 5 km across; enhanced color images are 1 km.) NASA/JPL/UArizona https://uahirise.org/ESP_062934_2040

This image is intended to provide a baseline picture of Martian sand dunes on a crater floor to look for potential motion in future observations. (Narrator:Tre Gibbs. Black and white images are 5 km across; enhanced color images are 1 km.) NASA/JPL/UArizona https://uahirise.org/ESP_063376_2315

This is a non-narrated clip featuring terrain in Coprates Chasma, part of the Valles Marineris canyon system on Mars. (North is to the bottom, less than 5 km across.) Music: “Tumbleweed Texas” by Chris Haugen. NASA/JPL/UArizona https://www.uahirise.org/ESP_055625_1660

A HiRISE observation in 2010 covered a new impact crater that formed after December 2007 and before August 2010, based on Context Camera images. HiRISE has been re-imaging these sites to see how rapidly the dark ejecta and blast zone markings disappear as dust is deposited or redistributed. (Narration: www.tregibbs.com. Black and white images are 5 km across; enhanced color images are 1 km.) NASA/JPL/UArizona https://uahirise.org/ESP_062948_2175

This image covers part of the eject from an impact crater (about 6-kilometers in diameter) to the west in Utopia Planitia on Mars. The ejecta lobes have morphologies suggesting icy flow. (Narration: www.tregibbs.com. Black and white images are 5 km across.) NASA/JPL/UArizona https://uahirise.org/ESP_062951_2255

This image covers the boundary between north polar ice and nearby polar sand dunes on Mars. The color data clearly distinguishes between the bright ice, dark sand, and reddish dust. (Narration: www.tregibbs.com. Black and white images are 5 km across; enhanced color images are 1 km.) NASA/JPL/UArizona https://uahirise.org/ESP_062827_2620

Dust and sand slide down slopes on Mars in little avalanches. Dark slope streaks are thought to be the result of the relatively bright colored dust avalanching down slopes, revealing the darker, coarser sand underneath. (Narration: www.tregibbs.com. Black and white images are 5 km across.) NASA/JPL/UArizona https://www.uahirise.org/ESP_063204_1800

This image was requested for a close examination of possible flow features and surface features such as fractures, pits, and folding. The lobe-shaped (lobate) landform may represent remnant debris covered ice. This image is located near Reull Vallis on Mars. (This is a non-narrated clip. Less than 5 km across.) Music: “Under the Rug” by Density and Time. NASA/JPL/UArizona https://www.uahirise.org/ESP_055527_1410

This image of the floor of an old impact crater in Arabia Terra shows evidence of multiple different geological processes, both ancient and modern. (Narration: www.tregibbs.com. Black and white images are 5 km across; enhanced color images are 1 km.) NASA/JPL/UArizona https://www.uahirise.org/ESP_061582_2010

It’s spring in the Northern Hemisphere of Mars, and this area was recently completely covered by the seasonal frost cap. Here, we see polygonal patterns that are highlighted by carbon dioxide frost that has not entirely sublimed away. (Narration: www.tregibbs.com. Black and white images are 5 km across; enhanced color images are 1 km.) NASA/JPL/UArizona https://www.uahirise.org/ESP_060685_2480

Layered sedimentary rocks are key to understanding the geologic history of a planet, recording the sequence of deposition and the changes over time in the materials that were deposited. (Narration: www.tregibbs.com. Black and white images are 5 km across; enhanced color images are 1 km.) NASA/JPL/University of Arizona

The mid-latitudes of Mars are draped with deposits of water ice and dust on the order of tens of meters thick. The deposits are preserved to varying degrees, depending on latitude and the degree of dust cover that insulates and protects the ice from subliming away. (Narration: www.tregibbs.com. Black and white images are 5 km across; enhanced color images are 1 km.) NASA/JPL/University of Arizona https://www.uahirise.org/ESP_060858_2160

This image shows a cross-section of ancient canyon systems in east Coprates Chasma, and displays several orders and generations of wind-driven dunes and ripples, also called bedforms. Some areas display more modern bedforms, often termed mega-ripples, which have likely been active over long timescales and have migrated in the recent past. (Narration: www.tregibbs.com. Black and white images are 5 km across; enhanced color images are 1 km.) NASA/JPL/University of Arizona https://www.uahirise.org/ESP_052737_1645

Chukhung is a 45 kilometer-diameter, central pit crater in Tempe Terra, having likely formed 3 billion years ago. The southern portion of the crater floor hosts a large viscous flow feature that is hypothesized to be a glacier. (Audio: www.tregibbs.com. Black and white images are 5 km across; enhanced color images are 1 km.) NASA/JPL/University of Arizona https://www.uahirise.org/ESP_060953_2185

Wind-blown deposits known as transverse aeolian ridges (TARs) are frequently visible in images of the Martian tropics. They are bright ripples with heights of 2.6 meters and spacing that averages 47 meters. The TARs generally appear inactive and eroded, sometimes cratered or littered with boulders from nearby impacts and avalanches. (Narration: www.tregibbs.com. Black and white images are 5 km across; enhanced color images are 1 km.) NASA/JPL/University of Arizona https://www.uahirise.org/ESP_061126_1680

This image shows an area near the sand sea that is surrounding the water ice-rich layered deposits at the North Pole of Mars. (Audio: www.tregibbs.com. Black and white images are 5 km across; enhanced color images are 1 km.) NASA/JPL/University of Arizona https://uahirise.org/ESP_060791_2550