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Le 14 mars est le 73 e jour, moins souvent le 74 e, de l'année du calendrier grégorien ; il en reste ensuite 292. C'était généralement le 24 e jour du mois de ventôse dans le calendrier républicain / révolutionnaire français, officiellement dénommé jour de la pâquerette.
Mars is the fourth planet from the Sun. The surface of Mars is orange-red because it is covered in iron (III) oxide dust, giving it the nickname " the Red Planet ". [21] [22] Mars is among the brightest objects in Earth's sky and its high-contrast albedo features have made it a common subject for telescope viewing.
- 24.07 km/s, (86700 km/h; 53800 mph)
- 1.025957 d, 24ʰ 37ᵐ 22.7ˢ
- 241 m/s, (870 km/h; 540 mph)
Marte é o quarto planeta a partir do Sol, o segundo menor do Sistema Solar, atrás apenas de Mercúrio. Batizado em homenagem a divindade romana da guerra, muitas vezes é descrito como o "Planeta Vermelho", porque o óxido de ferro predominante em sua superfície lhe dá uma aparência avermelhada.
March 14 is the 73rd day of the year (74th in leap years) in the Gregorian calendar; 292 days remain until the end of the year. Events Pre-1600. 1074 – ...
The first successful flyby of Mars was on 14–15 July 1965, by NASA's Mariner 4. On November 14, 1971, Mariner 9 became the first space probe to orbit another planet when it entered into orbit around Mars. The amount of data returned by probes increased dramatically as technology improved.
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Mars is a rocky planet. Its solid surface has been altered by volcanoes, impacts, winds, crustal movement and chemical reactions. Mars has a thin atmosphere made up mostly of carbon dioxide (CO2), argon (Ar), nitrogen (N2), and a small amount of oxygen and water vapor. Mars has two moons named Phobos and Deimos.
Mars is no place for the faint-hearted. It’s dry, rocky, and bitter cold. The fourth planet from the Sun, Mars is one of Earth's two closest planetary neighbors (Venus is the other). Mars is one of the easiest planets to spot in the night sky – it looks like a bright red point of light.
