14. Why is Earth the only planet that contains living things? (A K2S Question)

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We do not know yet whether that is true. We have only just begun to develop the technologies to check. Life grows in amazing places all over the Earth, even in deep dark caves, so there could be life that we have not discovered yet on Mars, say, and elsewhere in the solar system. And there are billions of other solar systems, too. So it will keep us humans busy for a long time exploring. If this "pale blue dot" called the Earth is the only place in the vastness of space which has living things, will that make you happy or sad?

Answer provided by Derek Webber


Image:K2S logosmall.jpg Question and Answer extracted from the book Kids to Space - by Lonnie Schorer


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