earthlight

/ˈɜrθˌlaɪt/
noun
  1. The sunlight reflected from the Earth's surface that illuminates the dark part of the Moon, also called earthshine.
    • Through the telescope, the earthlight on the moon's dark side was a soft, grayish glow.
    • The crescent moon glowed faintly with earthlight, making the rest of its disk visible.
    • Astronauts on the Moon would see a bright earthlight shining on the lunar surface.
  2. The light of the Earth itself, as seen from space or another celestial body.
    • From the space station, the earthlight was a brilliant blue and white band along the horizon.
    • The painting captured the eerie beauty of earthlight spilling across the lunar landscape.
    • In the lunar sky, the earthlight is about 50 times brighter than moonlight on Earth.
Synonyms
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