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  • Mars - Wikipedia
    Mars formed along with the other planets approximately 4 5 billion years ago During the martian Noachian period (4 5 to 3 5 billion years ago), its surface was marked by meteor impacts, valley formation, erosion, the possible presence of water oceans and the loss of its magnetosphere
  • Mars: Facts - NASA Science
    Mars — the fourth planet from the Sun — is a dusty, cold, desert world with a very thin atmosphere This dynamic planet has seasons, polar ice caps, extinct volcanoes, canyons, and weather
  • Mars | Facts, Surface, Moons, Temperature, Atmosphere | Britannica
    Mars is the fourth planet in the solar system in order of distance from the Sun and the seventh in size and mass It is a periodically conspicuous reddish object in the night sky There are intriguing clues that billions of years ago Mars was even more Earth-like than today
  • Mars - NASA Science
    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
  • All About Mars: Facts, Pictures How to See Mars - Star Walk
    In this article, we’ll tell you everything you need to know about Mars and answer the most common questions related to the Red Planet: why Mars is red, how big it is, what it looks like, and when it’s best to observe it
  • Mars: Facts, news, features and articles about the Red Planet
    Mars is the fourth planet from the sun and has a distinct rusty red appearance and two unusual moons The Red Planet is a cold, desert world within our solar system
  • Where Is Mars Right Now? Live Mars Tracker and 3D View
    Mars is the fourth planet from the Sun, the outermost of the rocky inner planets, and the most intensively studied world in the solar system after Earth This page shows Mars’s live position, its distance from Earth, and the current fleet of spacecraft studying it — all in real time
  • 39 Mars facts, discoveries and images - BBC Sky at Night Magazine
    A guide to the Red Planet, Mars, including facts about its geology, a history of Mars missions and images captured by astrophotographers
  • How Big Is Mars? - Encyclopedia Britannica
    Mars is a small planet, larger than only Mercury and slightly more than half the size of Earth Its equatorial radius measures 3,396 kilometers (2,110 miles), with a mean polar radius of 3,379 kilometers (2,100 miles)
  • Mars - Simple English Wikipedia, the free encyclopedia
    Mars is the fourth planet from the Sun and the second-smallest planet in the Solar System, nicknamed The Red Planet Mars is a terrestrial planet with caps of water and carbon dioxide [5][6] It has the largest volcano in the Solar System, and some very large impact craters





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