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cover of episode Measles Outbreaks, Asteroid Risks and Fish Friends

Measles Outbreaks, Asteroid Risks and Fish Friends

2025/2/24
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Science Quickly

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Alison Parshall: 我报道了近期关于小行星2024 YR4的新闻,其撞击地球的可能性预测先升高到超过3%,随后又降至1.5%。这一变化符合科学家的预期。 此外,我还报道了詹姆斯·韦伯太空望远镜的最新观测结果,表明银河系中心的黑洞人马座A*持续不断地发出光线耀斑,其吸积盘始终处于活跃状态,从未处于稳定状态。 在太空探索方面,John McFall成为首位获得批准前往国际空间站的残疾宇航员候选人,这标志着太空探索领域向前迈进了一大步。 我还报道了西德克萨斯州持续严重的麻疹疫情,大部分病例发生在儿童和年轻人中。美国麻疹疫苗接种率低于95%的目标,导致疫情爆发。 最后,我介绍了两项有趣的动物研究。一项研究表明,现代人类特有的NOVA1基因变体可能在语言发展中发挥了作用。另一项研究则发现,地中海的一些鱼类能够识别并记住特定的潜水员,这表明一些鱼类能够通过视觉线索区分不同的个体。

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The black hole at the center of our galaxy is emitting near-constant, random light. The European Space Agency has approved astronaut candidate John McFall, making McFall the first physically disabled candidate to be cleared to fly. The risk of asteroid 2024 YR4 hitting Earth rose to more than 3 percent and then dipped down to 1.5 percent with new data—our February 12 episode explained why this risk has been changing.

Recommended reading:

Hear our February 12 episode about asteroid 2024 YR4: https://www.scientificamerican.com/podcast/episode/what-we-know-about-2024-yr4-the-asteroid-with-a-2-percent-chance-of-impact/

Read more of guest host Allison Parshall’s exceptional coverage: https://www.scientificamerican.com/author/allison-parshall/

E-mail us at [email protected]) if you have any questions, comments or ideas for stories we should cover!

Discover something new every day: subscribe) to Scientific American and sign up) for Today in Science, our daily newsletter. 

Science Quickly is produced by Allison Parshall, Rachel Feltman, Fonda Mwangi, Kelso Harper, Madison Goldberg, Naeem Amarsy and Jeff DelViscio. This episode was hosted by Allison Parshall. Our show is edited by Naeem Amarsy with fact-checking by Shayna Posses and Aaron Shattuck. The theme music was composed by Dominic Smith.

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