Taking advantage of a total lunar eclipse in January 2019, astronomers using the NASA/ESA Hubble Space Telescope have measured the amount of ozone in Earth’s atmosphere. This method serves as a proxy for how they will observe Earth-like planets around other stars in search of life.

https://www.spacetelescope.org/videos/heic2013a/

Credit:
Directed by: Bethany Downer and Nico Bartmann.
Editing: Nico Bartmann
Web and technical support: Gurvan Bazin and Raquel Yumi Shida
Written by: Bethany Downer
Music: tonelabs (www.tonelabs.com) – Orion Fog.
Footage and photos: ESA/Hubble, M. Kornmesser