Show notes
- 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.

