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The word alien is a popular word for an extraterrestrial life-form, or a being from another planet. No one knows whether there is life elsewhere in the universe. But some scientists think that it is possible.
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- extraterrestrial life
No one knows if extraterrestrial life, or life that...
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Space Technology Expert Rebecca Allen thinks aliens exists, but states that it's unlikely that they resemble humans. The word 'alien’ conjures up an image of a human-like creature; however, the most predominant forms of life on Earth are much smaller, older and hardier: microorganisms.
7 Ιουν 2019 · Do space aliens exist? Life began on the Earth around 3.5 billion years ago. Could life have evolved on other planets and if so, where are they? Astronomers at the Royal Observatory Greenwich explain how we might detect them in this video.
No one knows if extraterrestrial life, or life that originated beyond Earth, exists or ever existed. The branch of biology concerned with extraterrestrial life, from microscopic organisms to intelligent beings, is called exobiology or astrobiology.
11 Οκτ 2024 · NASA science games, articles and activities for kids
10 Σεπ 2021 · Do aliens exist? Extraterrestrial life has never been discovered, but that doesn’t mean it doesn’t exist. At NASA, astrobiologists like Lindsay Hays are trying to answer one of the most profound questions ever: Is there life beyond Earth?
Why is Roswell famous as the site of an alien encounter? What do experts say about these mysteries? Pupils will learn about how to use and review case studies, and critique evidence in our National Geographic Kids’ Alien investigation primary resource sheet.
