For many years, researchers thought the gullies were made by running water. Usually, each gully has an alcove, channel, and apron. Moreover, they sometimes are on top of sand dunes which themselves are considered to be quite young. Gullies are believed to be relatively young because they have few, if any craters. Gullies occur on steep slopes, especially on the walls of craters. Most Martian gullies are found on the walls of craters or troughs, but Charitum Montes, a group of mountains, has gullies in some locations. Gullies are common in some latitude bands on Mars-usually in midlatitudes. Wide view of gullies in Arkhangelsky Crater, as seen by HiRISE under HiWish program This region shows a great deal of evidence of glacial activity with flow features, crevasse-like fractures, drumlines, eskers, tarns, aretes, cirques, Glacial horns, U-shaped valleys, and terraces. The deepest part of the lake may have taken more than a hundred thousand years to freeze, but with the help of heat from the impact, geothermal heating, and dissolved salts, it may have had liquid water for many millions of years. The lake's volume was equal to the Mediterranean Sea. That great impact melted the ice and formed a giant lake that eventually sent water to the North. Many researchers argue that the impact that formed the Argyre basin probably stuck an ice cap or a thick permafrost layer. Eskers are formed from streams moving under glaciers. After it froze solid, the ice formed eskers which are still visible today. As soon as water entered the basin, it began to freeze. At least three river valleys (Surius Vallis, Dzigal Vallis, and Palacopus Vallis) drain into it from the south. It contained a lake early in the history of Mars. It was formed by a giant impact that occurred 70 million years after the Hellas impact, the other giant impact in the Southern hemisphere. The real big feature of the Argyre quadrangle is the Argyre basin, called Argyre Planitia in the geological language of Mars. They have been some of our favorites over the years Avalanches in progressAnd the Dark streams that may or may not be a salty substance seeping into the surface, Pictures from Our spacecraft and spacecraft are on the surface of MarsAnd the And many more.The word Argyre is named after a legendary silver deposit at the mouth of the Ganges-Arakan, Berma. HiRISE is the most powerful camera ever sent to another planet, and it has provided a large number of incredibly detailed images of Mars features. The mission began in 2005, arrived at Mars in 2006 and has been observing the planet Mars ever since. MRO is one of NASA’s oldest and longest-lived spacecraft. This thermal erosion made the face ‘mouth’ larger, and the ‘nose’ – which had been composed of two circular depressions in 2011, is now larger and merging. You will also see that some features of the “blobby” may change shape due to the heat of the sun causing sublimation – when the solid directly turns into a gas, bypassing the liquid phase. There are differences in color caused by different amounts of bright frost over a dark red ground, according to the HiRISE team. The first photo was taken in 2011 and the other in December of 2020, around the same season, and it shows some different changes. A smiling face crater on Mars in December 2020, as seen with a HiRISE camera on the Mars Reconnaissance Orbiter. These two images were taken by the HiRISE (High Resolution Imaging Scientific Experiment) camera aboard the Mars Exploration Orbiter and show how the Martian surface changes over time – in this case, due to thermal erosion. Who has a smile bigger than it did ten years ago? This is a crater on the surface of Mars.

Smiley face of mars