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The Solar System

You may want to read our free ebook The Solar System for a brief introduction to this topic. The study of geology is the study of the Earth. The Earth is the fourth

four

planet away from the Sun

sunny_sun_T

.

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The Solar System is the sun and everything that orbits or moves around it due to its gravity. It includes:

  1. The sun itself.

    sunny_sun_T

    It is a star made mainly out of hydrogen and helium. It is, by far, the biggest and heaviest celestial body in the Solar System. It contains more than 99.8% of the total mass of the Solar System. It is not passive, it has flares and coronal mass ejections which are powerful eruptions of plasma on the Sun’s surface. These eruptions can have widespread impacts on Earth.

  2. The planet Earth

    earth_globe_glossy_T

    , the Moon

    angry_moon

    ,

    eight

    other planets (Mercury, Venus, Mars, Jupiter, Saturn, Uranus, Neptune, and Pluto) and their satellites.

solor_system

celestia

Celestia is a real-time space simulation that lets you explore our universe in three dimensions. It is free, open source and multiplatform.

  1. Comets

    comet_diagramEs

    are small

    comet2

    and icy

    ice_cube

    celestial bodies that orbit around the sun. They are cosmic snowballs of frozen gases, rock, and dust.

    sunny_sun_T

    .
    When they approach the sun, some of their water vapour and dust begin streaming off forming their long tails.

Comet_orbit

  1. Asteroids are kind of minor planets. These are small, rocky worlds without atmospheres that revolve around the sun. The larger ones have also been called planetoids.

asteroids

  1. Meteorites

    Meteor_1

    are chunks of rocks or metal that fall on Earth from space.
    They can be dangerous depending on their size and the location of impact with the Earth. Some scientists believe that a giant meteorite hit the earth and caused the dinosaurs’ mass extinction.

a Meteorite from Mars

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