<ul><li>Lumen Orbit has closed an oversubscribed, eight-figure seed round of over $10 million.</li><li>The startup aims to build a network of data centers in space to train large AI models.</li><li>Lumen Orbit plans to launch its demonstrator satellite in 2025 in partnership with Nvidia’s Inception program.</li><li>The company faces competition from other companies, like Lonestar Data Holdings, in solving the potential data center crisis.</li></ul>

Lumen Orbit closed one of the biggest rounds from Y Combinator’s last cohort

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