
【把科学带回家】
科学不再只是实验室里的严肃话题,而是孩子们生活的一部分。
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291
47期





The question of reaching the edge of the universe is impossible due to its ongoing expansion and infinite nature. As objects recede at near-light speeds, it would take an eternity for current technology to reach even remotely distant regions. The concept of a "boundary" in an expanding, potentially curved universe is ill-defined, suggesting that no matter how far one travels, they will never return to their starting point, given the cosmos"s infinite expanse.


143期

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