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In English, the planet Mars is named after Mars, the Roman god of war, [1] an association made because of its red color, which suggests blood. [2] The adjectival form of Latin Mars is Martius, [3] from which the English word Martian derives, used as an adjective or for a putative inhabitant of Mars, and Martial, used as an adjective corresponding to Terrestrial for Earth. [4]
Space probes have been establishing and mediating human presence interplanetarily since their first visits to Venus. Mars has seen a continuous presence since 1997, [55] after being first flown by in 1964 and landed on in 1971. A group of missions have been present on Mars since 2001, including continuous presence by a series of rovers since 2003.
Human missions to Mars have been part of science fiction since the 1880s, and more broadly, in fiction, Mars is a frequent target of exploration and settlement in books, graphic novels, and films. The concept of a Martian as something living on Mars is part of the fiction.
The human exploration of Mars has been an aspiration since the earliest days of modern rocketry; Robert H. Goddard credits the idea of reaching Mars as his own inspiration to study the physics and engineering of space flight. [144] Proposals for human exploration of Mars have been made throughout the history of space exploration. Currently ...
It was the first human-made object to reach outer space, attaining an apogee of 176 kilometers, [22] which is well above the Kármán line. [23] It was a vertical test launch. Although the rocket reached space, it did not reach orbital velocity, and therefore returned to Earth in an impact, becoming the first sub-orbital spaceflight. [24]
NASA's Human Research Program (HRP) is designed to study the effects of space on human health and also to provide countermeasures and technologies for human space exploration. [156] The medical effects of space exploration are reasonably limited in low Earth orbit or in travel to the Moon.
The Urdu Wikipedia (Urdu: اردو ویکیپیڈیا), started in January 2004, is the Standard Urdu-language edition of Wikipedia, a free, open-content encyclopedia. [1] [2] As of 19 February 2025, it has 217,936 articles, 190,727 registered users and 7,544 files, and it is the 54th largest edition of Wikipedia by article count, and ranks 20th in terms of depth among Wikipedias with over ...
These were the non-fatal aborted Soyuz mission MS-10 which did not reach the Kármán line but did pass the 80 km (50 mi) line. The other was the non-fatal Soyuz mission, 18a which crossed the Kármán line. Four missions successfully achieved human spaceflight, yet ended as fatal failures as their crews died during the return.