
Privacy
Mars | |
---|---|
State | |
Country | |
Capital | |
Population | 0 |
Mars is the fourth planet from the Sun and the second-smallest planet in the Solar System, being larger than only Mercury. In English, Mars carries the name of the Roman god of war and is often referred to as the "Red Planet". The latter refers to the effect of the iron oxide prevalent on Mars's surface, which gives it a reddish appearance distinctive among the astronomical bodies visible to the naked eye. Mars is a terrestrial planet with a thin atmosphere, with surface features reminiscent of the impact craters of the Moon and the valleys, deserts and polar ice caps of Earth.
The days and seasons are comparable to those of Earth, because the rotational period as well as the tilt of the rotational axis relative to the ecliptic plane are similar. Mars is the site of Olympus Mons, the largest volcano and highest known mountain on any planet in the Solar System, and of Valles Marineris, one of the largest canyons in the Solar System. The smooth Borealis basin in the northern hemisphere covers 40% of the planet and may be a giant impact feature. Mars has two moons, Phobos and Deimos, which are small and irregularly shaped. These may be captured asteroids, similar to 5261 Eureka, a Mars trojan.Mars has been explored by several uncrewed spacecraft. Mariner 4 was the first spacecraft to visit Mars; launched by NASA on 28 November 1964, it made its closest approach to the planet on 15 July 1965. Mariner 4 detected the weak Martian radiation belt, measured at about 0.1% that of Earth, and captured the first images of another planet from deep space. The Soviet Mars 3 mission included a lander, which achieved a soft landing in December 1971; however, contact was lost seconds after touchdown. On 20 July 1976, Viking 1 performed the first successful landing on the Martian surface. On 4 July 1997, the Mars Pathfinder spacecraft landed on Mars and on 5 July released its rover, Sojourner, the first robotic rover to operate on Mars.
Dusseldorf | |
---|---|
State | |
Country | |
Capital | |
Population | 0 |
Düsseldorf (often Dusseldorf in English sources; UK: , US: , German: [ˈdʏsl̩dɔʁf] (listen); Low Franconian and Ripuarian: Düsseldörp ([ˈdʏsl̩dœɐ̯p]); archaic Dutch: Dusseldorp) is the capital and second-largest city of the most populous German state of North Rhine-Westphalia after Cologne, and the seventh-largest city in Germany, with a population of 617,280. At the confluence of the Rhine and its tributary Düssel, the city lies in the centre of both the Rhine-Ruhr and the Rhineland Metropolitan Regions with the Cologne Bonn Region to its south and the Ruhr to its north. Most of the city lies on the right bank of the Rhine (as opposed to Cologne, whose city centre lies on the river's left bank). The city is the largest in the German Low Franconian dialect area (closely related to Dutch). "Dorf" meaning "village" in German, the "-dorf" suffix (English cognate: thorp) is unusual in the German-speaking area for a settlement of Düsseldorf's size.
Mercer's 2012 Quality of Living survey ranked Düsseldorf the sixth most livable city in the world. Düsseldorf Airport is Germany's third-busiest airport after those of Frankfurt and Munich, serving as the most important international airport for the inhabitants of the densely populated Ruhr, Germany's largest urban area.
Petrovac (Serbian Cyrillic: Петровац), also known as Petrovac na Mlavi (Serbian Cyrillic:...
Constanța (UK: , US: , Romanian: [konˈstantsa] (listen); Greek: Κωνστάντζα, romanized:...
Novokuznetsk (Russian: Новокузнецк, IPA: [nəvəkʊzˈnʲɛt͡sk]; literally: "new smith's")...