Public domain
Earth Observation
From the collection of NASA Image and Video Library. Free to download, adapt and use — no permission needed.
About this work
ISS028-E-017123 (16 July 2011) --- Separate atmospheric optical phenomena were captured in this electronic still photograph from the Inernational Space Station. The thin greenish band stretching along the Earth's horizon is airglow; light emitted by the atmosphere from a layer about 30 kilometers thick and about 100 kilometers in altitude. The predominant emission in airglow is the green 5577 Angstrom wavelength light from atomic oxygen atoms.
NASA Image and Video Library’s own descriptionCredit lineEarth Observation. NASA/JSC, 2011-07-15. Public domain. ID: iss028e017123.
