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Life on Other Planets

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    True and False
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  • True or False? Life on other planets is not a possibility.
    True. The possibility of life on other planets is a question that has intrigued and inspired people for a long time.
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  • True or False? The Greeks have recently described planets as wanderers in the sky.
    False. It was the ancient Greeks who were the first to describe planets...
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  • True or False? Galileo found that the stars in the sky were not similar to where we live.
    False. Galileo saw that they were in fact quite similar to where we live.
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  • True or False? The name of the spacecraft on Mars is Curiosity.
    True. There is a spacecraft on Mars called Curiosity.
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  • True or False? Curiosity has found signs of life on Mars.
    False. Curiosity has the mission of looking for signs of life.
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  • True or False? Curiosity is looking for signs of life on Mars.
    True. Curiosity has the mission of looking for signs of life
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  • True or False? Some very special life forms can exist under difficult conditions on Earth.
    True. That very special forms of life can exist here on Earth in extremely harsh conditions.
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  • True or False? Mars looks very much like a beautiful place full of life.
    False. Mars looks very much like an empty desert with no liquid water on its surface.
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  • True or False? Microbes can survive under very harsh conditions.
    True. ...but other animals can, especially microbes.
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  • True or False? All forms of life need at least liquid water to survive.
    False. We can even find special worms that live in frozen methane without oxygen or liquid water.
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  • True or False? Saturn has some other moons, smaller than Titan.
    True. Titan is the largest of Saturn's moons.
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  • True or False? The sun provides energy to only some life forms.
    True. Most life forms use the sun as their basic form of energy.
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  • True or False? So far astronomers have found over one thousand Earth-like planets that orbit suns within thirty light years of here.
    False. So far astronomers have found over one hundred Earth-like planets...
  •  15
  • True or False? Travelling to these distant planets would be possible if we had spaceships that travelled at the speed of light.
    False. Even if...
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  • True or False? We still have to learn a lot about life on Earth.
    True. We have to discover a lot more about life on Earth.
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  • True or False? Curiosity is hunting for very small life forms and aliens.
    False. Curiosity is hunting for microbes.
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