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The REAL Possibility of Mapping Alien Planets!
PBS Space Time
PBS Space Time explains the proposal to use the Sun's gravity as a giant lens, sending a train of small light-sail spacecraft to the focal point roughly 550 AU out. It covers how such a telescope could image exoplanets in surprising detail and the engineering challenges involved.
It is the go-to explanation whenever a thread touches on imaging exoplanets or solar gravitational lens telescopes.
7 Hacker News mentions · 2023–2024