how did it get its name?
Astronomers named it for the albedo feature known as Nix Olympica.
Olympus Mons

The Mariner 9 spacecraft arrived in orbit around Mars in 1971 during a global dust-storm. The first objects to become visible as the dust began to settle, the tops of the Tharsis volcanoes, demonstrated that the altitude of these features greatly exceeded that of any mountain found on Earth, as astronomers expected. Observations of the planet from Mariner 9 confirmed that Nix Olympica was a volcano. Ultimately, astronomers adopted the name "Olympus Mons" for the albedo feature known as Nix Olympica.
when was the last time mauna loa volcano erupted From March 24 to April 15, 1984. describe the structure of it? It is the largest subaerial and second largest overall volcano in the world (behind Tamu Massif), covering a land area of and spans a maximum width of . Consisting of approximately of solid rock, it makes up more than half of the surface area of the island of Hawai which is the first largest overall volcano in the world? Tamu Massif where is its location? It is located in the Shatsky Rise about east of Japan from where did it get its name? The name "Tamu" is taken from the initials of Texas A&M University, where William Sager, a geology professor at the University of Houston and one of the lead scientists studying the volcano, previously taught. describe a few geological aspects of it? The main part of Tamu's rounded dome extends over an area of , totaling more than , many times larger than Mauna Loa, which has an area of , and about half the area of the Martian volcano Olympus Mons. The entire mass of Tamu consists of basalt. Its slopes are very gradual, ranging from less than half a degree to one degree near its summit. what are the surrounding features of the mentioned above martian volcano? It is roughly three times the height of Mount Everest, which in comparison stands at just over . It is either the tallest or second-tallest mountain in the Solar System
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Olympus Mons [SEP] Early observations and naming
Olympus Mons and a few other volcanoes in the Tharsis region stand high enough to reach above the frequent Martian dust-storms recorded by telescopic observers as early as the 19th century. The astronomer Patrick Moore pointed out that Schiaparelli (1835–1910) "had found that his "Nodus Gordis" and "Olympic Snow" [Nix Olympica] were almost the only features to be seen" during dust storms, and "guessed correctly that they must be high". The Mariner 9 spacecraft arrived in orbit around Mars in 1971 during a global dust-storm. The first objects to become visible as the dust began to settle, the tops of the Tharsis volcanoes, demonstrated that the altitude of these features greatly exceeded that of any mountain found on Earth, as astronomers expected.