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Planet Earth II

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  • What is the Universe?
    All the matter and space that exists.
  • The galaxies are made of...
    stars, planets and other astronomical obejcts.
  • Galaxies are systems composed by...
    They are galaxies composed by gas and thousands of millions of stars.
  • What are asteroids?
    Irregular-shaped rocks that orbit the Sun.
  • Natural satellites are astronomical objects that orbit...
    a planet.
  • What kind of shape does the Milky Way have?
    It´s spiral shaped.
  • What´s the name of our galaxy?
    The MIlky Way.
  • How many types of galaxies are there?
    There are three: elliptical, spiral and irregular.
  • Can you explain the asteroids size?
    They can be a few metres size or hundreds of km wide.
  • How did the Universe start?
    It started with an explosion called the Big Bang.
  • What´s Planet Earth´s natural satellite?
    The Moon.
  • Planets are astronomical objects that orbit...
    a star.
  • What kind of astronomical objects are stars?
    They are astronomical objects that produce heat and light.
  • What did the Big Bang do?
    It sent pieces of matter in different directions.
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