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cover of episode Things You Thought You Knew – Planet X

Things You Thought You Knew – Planet X

2024/8/6
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StarTalk Radio

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Chuck Nice
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Neil deGrasse Tyson
以主持《宇宙:时空之旅》和《星谈》等科学节目而闻名的美国天体物理学家和科学传播者。
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Chuck Nice详细描述了对X行星的探索历史,从天王星的意外发现开始,人们发现天王星的轨道运动与牛顿定律存在偏差,由此推测存在一颗未知行星(X行星)对其产生引力扰动。随后,科学家们通过数学计算预测了海王星的位置并成功发现,这进一步增强了对X行星存在的信心。然而,对海王星轨道进一步观测发现,其轨道偏差依然存在,这引发了对X行星的大规模搜寻。最终,冥王星被发现,并一度被认为是X行星,但后来的观测表明,冥王星的质量太小,不足以对海王星的轨道产生显著影响。最终,科学家们通过重新分析历史观测数据,发现早期的观测数据存在误差,从而证伪了X行星的存在。整个过程展现了科学探索的曲折性和严谨性,以及对科学数据准确性的重视。

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What is the three body problem? How will the universe end? Neil deGrasse Tyson and comedian Chuck Nice break down the case of Planet X, why the three body problem is unsolvable, and prevailing theories on how the universe will come to an end. 

NOTE: StarTalk+ Patrons can listen to this entire episode commercial-free.

Thanks to our Patrons Micheal Brown, Naburos, Teresa Fiorenza, Afshin Odabaee, Liz Freedman, Grace Sakoda, Dean Klunk, Alex Deters, Craig Maier, and Jack Cater for supporting us this week.