Officially known as a total lunar eclipse, the phenomenon occurs when the Earth casts its shadow across the moon, turning it a rusty shade of red. In Portland, a partial eclipse began around 10 p.m. Thursday, reaching totality for about an hour before 12:30 a.m. But in classic Pacific Northwest style, cloudy skies demanded all the attention.

The Philadelphia region will be in for a celestial treat when a total lunar eclipse takes over the skies Thursday into Friday. This will be the first such eclipse in the area in three years. "People should be excited to view the total lunar eclipse this evening because it doesn't happen all that often,

A crimson moon will be visible in UK skies thanks to a partial lunar eclipse. But when is it, what exactly will you see and what causes it?