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Pianeti sistema solare

JANET PETRO: Well, technically, space or outer space is a big void. It's a vacuum that exists beyond Earth. And even though space is a vacuum, it's not empty. Outer space contains...
BRAD: Now, some of our recent discoveries regarding the planets in our Solar System are thanks to Cassini. LIAM: Well, who's he then? BRAD: It's an unmanned spacecraft. LIAM: Well,...