26.3 MB (1.1 MB compressed)
3715 x 2478 pixels
31.5 x 21.1 cm ⏐ 12.4 x 8.3 in (300dpi)
LARRY LANDOLFI / SCIENCE PHOTO LIBRARY LARRY LANDOLFI / SCIENCE PHOTO LIBRARY
2 Day Old waxing crescent Moon , with earthshine. Image 2 of 27. Image of a waxing (increasing in apparent size) crescent Moon 2 days into its 28-day cycle. The lunar phases arise as the Moons orbit of the Earth shows the Earth-facing side moving into and out of the light of the Sun. This Earth-facing side of the Moon is locked in place by the gravitational influence of the Earth. This results in a lunar day that equals the length of the lunar Earth orbit. On a waxing Moon the day-night line (terminator) marks the lunar dawn. The Moon is crescent when it is less than half full.
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