Only when the moon, Earth and the sun are perfectly aligned is the moon 100% full. And sometimes — once in a blue moon — the moon is full twice in a month (or four times in a season ...

From fiery 'blood moons' to ancient legends, discover the surprising science and history behind lunar eclipses.

Every time we go four times around the sun, it has almost ... the entire Earth-Moon system — which is not to say that we don't know a lot about it. In fact, we know a lot about it.

Mark your calendar for the night of March 13 into the early morning hours of March 14.

Oh, and the calendar started the moment Neil Armstrong walked on the moon ... fact? You probably think of Earth as located in ...

The next total lunar eclipse will be on Sept. 7-8, 2025, visible in parts of Asia and Australia, with totality lasting 82 ...

Exactly two weeks after the "blood moon" total lunar eclipse comes a partial solar eclipse visible to some in North America.

What is a lunar eclipse and why does it make the moon look red? When the sun, Earth and moon all align so that the moon passes into the Earth's shadow, there's a lunar eclipse. During a total ...

A total lunar eclipse occurs when the Earth makes its way between the sun and moon. The Earth casts a shadow on the surface of the moon, dimming it. The next lunar eclipse visible in the U.S ...

The phenomenon of a Full Moon arises when our planet, Earth, is precisely sandwiched between the Sun and the Moon ... Note: Moon phases in the calendar vary in size due to the distance from ...