Articles

Articles

  • What is the hottest planet in the solar system?

    We have eight planets in our solar system, each one circling the sun at a different distance. Earth is the third planet and we are in what is called the ‘Goldilocks Zone’. That means we aren’t too hot and we aren’t too cold; we are just right. This has allowed life to thrive on earth because the temperature is perfect...
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  • What is Saturn made of?

    Saturn is the sixth planet in our Milky Way galaxy and is most known for its beautiful rings. Saturn was the Roman name for the Greek god ‘Cronus’, who was the Titan lord in mythology. Like so many words that we use today, Saturn is the base word for Saturday. To understand what Saturn is made up, we have to know about the different types...
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  • What is the smallest planet in the solar system?

    We have eight planets in our solar system, but until a few years ago, everyone thought there were nine. For many years we considered the little planet at the edge of the galaxy, called Pluto, to be our ninth planet. Pluto was small, but it has its own...
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  • Why do stars die?

    When we look up at the stars, they seem like they have been there forever. Every night, we can count on seeing the constellations, and know that they will be there tomorrow night. Many of the stars that we see are actually suns, very similar to our own sun. To understand why stars die, we have to learn how stars are born.
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  • Why is Mars Red?

    For thousands of years, we have been looking up to the sky and seeing the beautiful red planet that we call Mars. Ancient Egyptians saw it best in the night sky and called it ‘the red one’. The Greeks and Romans thought it was powerful and named it after their god of war: Mars. Some people were afraid of it and others thought Mars was a...
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  • Why Mars is called the Red Planet

    Mars is the fourth planet in our solar system and is about 228 million km from earth. Even being so far away, people throughout time have looked up at the heavens and have been able to clearly see the orange-red planet.
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  • Why does Saturn have rings?

    Saturn is probably one of the top favorites of all of the planets in our solar system. One of the main reasons it’s so popular is due to those mysterious rings. Floating out in space, the rings of Saturn are brilliant and bright and almost seem magical. So how did Saturn get its rings and how do they stay there?
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  • Why isn’t the asteroid belt a planet?

    Planetary scientists have a very specific definition for a planet, and they have a tendency to get rather ‘snippy’ if you try to go outside that definition. As an example, ever since ‘Pluto’ was first discovered, the definition for a planet was a lot more accepting and so they included Pluto as planet in our solar system. Pluto...
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  • Why are astronauts weightless in space?

    Everyone has seen video and pictures of the astronauts in space. We watch on them each mission, as well as astronauts on the International Space Station, gently floating in space. If you asked anyone why the astronauts are weightless in space, they would probably all say ‘because there isn’t any gravity’ – but that, would be...
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  • Why is the center of the earth hot?

    The earth, like all of the planets in our solar system, had a very violent start in its creation. There are areas in space that are called the ‘planetary nurseries’ and they are filled with gas, dust and various elements. When the pressure builds up inside of them, combined with a potential ‘trigger’ (like an old star that...
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