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Some TRAPPIST-1 planets may be water worlds

Some TRAPPIST-1 planets may be water worlds

Author: Laurel Hamers / Source: Science News WATER WORLDS The TRAPPIST-1 system, with seven Earth-sized planets orbiting a dwarf star, has captured the attention of scientists hunting for life outside the solar system. New estimates of the planets’...

How Earth got its moon

How Earth got its moon

Author: Thomas Sumner / Source: Science News for Students full moon The story of our moon’s origin does not add up. Most scientists think that that the moon formed in the earliest days of our solar system. That would have been back around 4.5 billion years...

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