Space Telescope Interferometer to Image Exoplanet Continents
by Brian Wang from NextBigFuture.com on (#78BAC)
A NASA NIAC project will try to Mapping Alien Continents using formation-flying optical interferometer. Two hierarchical nullers ~100 km apart that first suppress the host star by ~10^1 in visible light, then combine the leftover planet light as a Michelson interferometer. That baseline gives an angular resolution of order 1 as at 500 nm. An ...