A "blood moon" name for reddish look moon during total lunar eclipse. It result sunlight being filtered and scattered by Earth's atmosphere. Tonight moon red due to smoke. moon well studied yet mostly unknown.

A blood moon occurs during a total lunar eclipse, where the Sun, Earth, and Moon align perfectly, with Earth positioned directly in the middle. During this alignment, Earth blocks direct sunlight from reaching the Moon. Instead of turning completely dark, the Moon is indirectly lit by sunlight that has passed through Earth's atmosphere. Earth's atmosphere scatters the blue light from the Sun more than the red light - the same reason sunsets and sunrises appear red. The remaining longer, reddish wavelengths of light are bent (or refracted) toward the Moon, casting a deep red or orange glow onto its surface.

While a blood moon is a predictable event, its appearance has been interpreted in some ancient cultures as an ominous sign, a harbinger of famine or disease. Even in 2014–2015, a series of four consecutive total lunar eclipses was linked by some religious groups to end of time prophecies found in the Bible (Revelation) In 1504, Christopher Columbus famously used his knowledge of an upcoming lunar eclipse to intimidate indigenous people into providing his crew with food.

September 7–8, 2025: A total lunar eclipse will be visible over Europe, Africa, Asia, and Australia. It will last about 82 minutes. North and South America will not be in the line of sight for this event so pack your suitcases and head out way east if you want to see it (or west).

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A "blood moon" is the name for the reddish look of the moon during a total lunar eclipse. It is a result of sunlight being filtered and scattered by Earth's atmosphere. Tonight the moon is red due to smoke. The moon is well studied yet mostly unknown.