The moon...is big.
Exactly how big was on display last month during the total solar eclipse over Asia. This photo above from a MTSAT satellite shows the shadow of the moon on the Earth during the peak of the eclipse.
You can find a higher resolution of the image here: http://earthobservatory.nasa.gov/IOTD/view.php?id=39520
And here is the main EarthObservatory page, which features a cool image from outer space each day!