Hubble uses Earth as proxy for identifying oxygen on potentially habitable exoplanets
Thursday, August 6, 2020 - 12:31
in Astronomy & Space
Taking advantage of a total lunar eclipse, Hubble used the Moon as a mirror to study sunlight that had passed through Earth's atmosphere. As a result, Hubble detected Earth's own brand of sunscreen - ozone - in our atmosphere. The technique simulates how scientists will search for evidence of life on planets around other stars.