What Can We Actually Find on an Exoplanet? Part 2: A Machine to Find Another Earth
The Habitable Worlds Observatory is being built for one purpose: to directly image another living Earth. Inside the coronagraph that must block ten billion times the planet's light, the picometer-stable mirror we don't yet know how to build, and the messy problem of reading an atmosphere.
We haven't written up this one. Universe Today has the full story — the link below goes straight to it.