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June 16, 2023 5 mins
  • Key Takeaways
    • Exoplanets are the hottest topic in astronomy right now. But if we really want to know what is happening on planets many light-years away, we need to image them.
    • According to Einstein’s general theory of relativity, massive objects bend spacetime in such a way that they can act like giant lenses.
    • By the 2060s, we might begin to record images of alien planets, revealing alien river systems, alien mountain ranges, strings of alien islands, alien deserts, alien peninsulas — and perhaps alien cities.
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