In this episode of the Economist Intelligence podcast, we explore three intriguing topics: the health risks associated with space travel, the challenges facing Britain's mobile phone service, and Brazil's evolving geopolitical relationships. Recent studies indicate that space travel may speed up aging due to mitochondrial damage from microgravity, radiation, and the absence of a protective magnetosphere. Meanwhile, Britain's mobile network is struggling to keep up with high demand, hampered by a delayed 5G rollout linked to a Huawei ban and a lack of investment. Lastly, under President Lula, Brazil is forging closer ties with China, particularly in trade and renewable energy, as it navigates a tense relationship with a potential Trump administration.