LOUPE: Observing Earth from the Moon to prepare for detecting life on Earth-like exoplanets: Observing Earth from the Moon to prepare for detecting life on Earth-like exoplanets: LOUPE: Observing Earth from the Moon

LOUPE, the Lunar Observatory for Unresolved Polarimetry of the Earth, is a small, robust spectro-polarimeter for observing the Earth as an exoplanet. Detecting Earth-like planets in stellar habitable zones is one of the key challenges of modern exoplanetary science. Characterizing such planets and searching for traces of life requires the...