How would they even find an exoplanet as small as earth if all they can see is a... | Hacker News

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		irrational 18 hours ago \| parent \| context \| favorite \| on: A solar gravitational lens will be humanity's most... How would they even find an exoplanet as small as earth if all they can see is a couple of square km? Point it at the system and hope the planet just happens to move across the field of view?

ant6n 2 hours ago [–]

You need to already know it's there and specifically point at it. It's hard to point so exactly.

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