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  1. science.nasa.gov › mars › factsMars: Facts - NASA Science

    Mars is one of the most explored bodies in our solar system, and it's the only planet where we've sent rovers to roam the alien landscape. NASA missions have found lots of evidence that Mars was much wetter and warmer, with a thicker atmosphere, billions of years ago.

    • In Depth

      Mars is no place for the faint-hearted. It’s dry, rocky, and...

    • Overview

      Overview. Mars is the fourth planet from the Sun – a dusty,...

    • All About Mars

      Mars is a terrestrial planet. It is small and rocky. Mars...

  2. en.wikipedia.org › wiki › MarsMars - Wikipedia

    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". 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.

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  4. science.nasa.gov › marsMars - NASA Science

    Home. Mars is the fourth planet from the Sun, and the seventh largest. It’s the only planet we know of inhabited entirely by robots. All About Mars. Read More. Small World. Mars is 53% smaller than Earth. Fourth Rock. Mars is 1.52 AU from the Sun. Earth = 1. More Time.

  5. www.britannica.com › place › Mars-planetMars | Facts, Surface, Moons, Temperature, & Atmosphere

    2 giorni fa · 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.

  6. solarsystem.nasa.gov › planets › marsIn Depth | Mars – NASA Solar System Exploration

    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.

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    • Mars Infographics • The Mars Society of Canada
    • Mars - 8th Grade Science
    • In Depth | Mars – NASA Solar System Exploration
    • Overview | Mars – NASA Solar System Exploration
    • 50 Facts About Mars That They Didn't Teach You In Science Class

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  8. solarsystem.nasa.gov › planets › marsOverview | Mars – NASA Solar System Exploration

    Overview. Mars is the fourth planet from the Sun – a dusty, cold, desert world with a very thin atmosphere. Mars is also a dynamic planet with seasons, polar ice caps, canyons, extinct volcanoes, and evidence that it was even more active in the past.

  9. www.nationalgeographic.com › science › articleMars, the red planet: Facts and information - National Geographic

    21 ago 2023 · With a radius of 2,106 miles, Mars is the seventh largest planet in our solar system and about half the diameter of Earth. Its surface gravity is 37.5 percent of Earth’s. 3:27. Mars rotates on...