1. 《Adventures on the Alien Planet Gok in 1985》 | Episode 1(part 1) | Taken away from home

    《Adventures on the Alien Planet Gok in 1985》 | Episode 1(part 1) | Taken away from home

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  2. Mercury has an 11-mile thick diamond layer between its core and mantle

    Mercury has an 11-mile thick diamond layer between its core and mantle

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