Planet Earth has no official name. Each person simply refers to it in their chosen language, and there are hundreds of words for Earth all over the world. Many derive from the Latin "terra."
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Key Facts In This Video
Most of the planets and their satellites are named after Greek and Roman deities. 00:13
In 1971, an asteroid was named Mister Spock. 02:29
Earth has no official scientific name. 03:47