lightning and earthquakes. They have also been proposed for use in future explorations of Venus’s atmosphere, to search for signs of active volcanism and chemical signatures of life. Moreover, the ability to fix a balloon’s geographical position is crucial if balloons are to be used to build an aerial wireless network for telecommunications — an early objective of Project Loon, the owners of the balloons used in Bellemare and colleagues’ study. Station-keeping a balloon for months at a time would allow long-term environmental monitoring, for example, of air quality over cities, of carbon fluxes from heat-stressed forests and of regions of thawing permafrost. Other applications include monitoring animalmigration routes and illicit trafficking of goods and people across borders. These applications will become increasingly relevant as the effects of climate change become more pronounced, as restrictions on movement are imposed by global events such as COVID-19, and as longterm climate-change mitigation involving aviation prompts the search for alternative platforms for making aerial observations.

中文翻译：

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通过逆转表观遗传时钟恢复视力

闪电和地震。它们还被提议用于未来对金星大气的探索，以寻找活跃火山活动的迹象和生命的化学特征。此外，如果要使用气球建立空中无线通信网络，确定气球地理位置的能力至关重要——这是 Project Loon 的早期目标，Bellemare 及其同事的研究中使用的气球的所有者。一次保持一个气球数月将允许长期环境监测，例如，城市的空气质量，来自热应力森林和融化的永久冻土区的碳通量。其他应用包括监控动物迁徙路线以及跨境非法贩运货物和人员。