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A lunar eclipse occurs when the Moon passes directly behind the Earth, preventing the Sun's rays from reaching it. Lunar eclipses only occur at full moon and when the Moon is in the Earth's plane of orbit.
Lunar eclipses usually occur a few times a year. More >>

Lunar eclipse - Wikipedia

en.wikipedia.org/wiki/Lunar_eclipse

A lunar eclipse occurs when the Moon passes directly behind the Earth into its umbra (shadow) ... The penumbra causes a subtle darkening of the moon's surface. A special type of penumbral eclips...

'Blood Moons' Explained: What Causes a Lunar Eclipse Tetrad ...

www.space.com/25427-blood-moons-lunar-eclipse-tetrad-infographic.html

Sep 18, 2015 ... A series of four total lunar eclipses in a row is called a tetrad, or four Blood Moons . See how lunar eclipse tetrads work in this Space.com ...

Lunar Eclipses: What Is a Total Lunar Eclipse & When Is the Next ...

www.space.com/15689-lunar-eclipses.html

Dec 20, 2016 ... Lunar eclipses occur when Earth's shadow blocks the sun. ... of what causes an eclipse and therefore blamed the events on this god or that.

Lunar Eclipses for Beginners - MrEclipse.com

www.mreclipse.com/Special/LEprimer.html

Sep 22, 2014 ... Introduction. What is an eclipse of the Moon? What causes eclipses and why? How often do eclipses happen and when is the next eclipse of ...

Lunar Eclipses and Solar Eclipses :: NASA Space Place

spaceplace.nasa.gov/eclipses/

Sep 9, 2015 ... A solar eclipse happens when the moon gets in the way of the sun's light and casts its shadow on ... Similar Item 1 : What causes the seasons?

What Is an Eclipse? | NASA

www.nasa.gov/audience/forstudents/5-8/features/nasa-knows/what-is-an-eclipse-58

(This sunlight is what causes the moon to shine.) Instead of light hitting the moon's surface, Earth's shadow falls on it. This is an eclipse of the moon -- a lunar ...

What causes an eclipse? | Reference.com

www.reference.com/science/causes-eclipse-b74cd2d86cedaf75

An eclipse is caused by the movement of a moon or planet into the shadow of another. The two types of eclipses that occur on Earth (solar and lunar) involve the ...

What causes a lunar eclipse? - Technology & science - Space | NBC ...

www.nbcnews.com/id/11947384/ns/technology_and_science-space/t/what-causes-lunar-eclipse/

What's up in spacefrom NBC News Digital. We've moved our coverage of space science and exploration to a new home page on the Web. Explore the universe ...

Why Does the Moon Turn Red During a Lunar Eclipse?

www.timeanddate.com/eclipse/why-does-moon-look-red-lunar-eclipse.html

A Total Lunar Eclipse happens when the Earth moves in between the Sun and the ... It is the same mechanism responsible for causing colorful sunrises and ...