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NASA Innovative Advanced Concepts

Stellar Echo Imaging of Exoplanets, Phase I

Completed Technology Project

Project Introduction

Stellar Echo Imaging of Exoplanets, Phase I
All stars exhibit intensity fluctuations over several time scales, from nanoseconds to days; these intensity fluctuations echo off planetary bodies in the star system and provide an opportunity to detect and image exoplanets using modern computational imaging techniques. A mission utilizing distributed-aperture stellar echo detectors could provide continent-level imaging of exoplanets more readily than interferometric techniques, as high temporal resolution detection is less technically challenging and more cost effective than multi-kilometer-baseline fringe-tracking, particularly in a photon-starved regime. The concept is viable for detecting exoplanets at more diverse orbital inclinations than is possible with transit or radial velocity techniques. More »

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