First Quarter Moon (at 13:52 GMT)
When the moon completes the first quarter of its orbit around Earth at 11:52 a.m. EDT, 8:52 a.m. PDT, or 13:52 GMT on Sunday, May 4, the 90 degree angle formed by the Earth, sun, and moon will cause us to see our natural satellite half-illuminated on its eastern, sunward side. While at first quarter, […]