Shown above, the waxing crescent Moon hovers over a bridge in Lisbon, Portugal. A brilliant Jupiter can be seen just beneath the bridge, below and to the left of the Moon. Photographer: Miguel Claro; Miguel’s Web site
This photo was taken a little past sunset (9:20 p.m.) on April 22, 2012 — the Moon was only one percent illuminated at the time. Note the distinct ashen light on the non-illuminated portion of the Moon. This is called earthshine or “the old Moon in the new Moon’s arms” and results from sunlight reflecting onto the Moon off both the Earth’s surface and atmosphere. It’s typically only visible when the Moon is in the crescent phase.