Skip to content
Red moon: how to watch the total lunar eclipse tonight

On Sunday evening, a strange red moon will be visible over much of the world thanks to a rare total lunar eclipse.

Beginning at 10:27 p.m. ET on Sunday, Earth will come between the moon and the sun, and the moon will begin to move into Earth’s shadow for a partial eclipse. At 11:29 p.m. ET, the moon will move into the darkest part of Earth’s shadow, called the umbra, and the total eclipse will begin and last just over an hour.

Light travels in waves, and light of different colors has different wavelengths. Higher frequency blue and violet light has a shorter wavelength and is more easily scattered by particles in the atmosphere. Meanwhile, a lower frequency can more easily pass through the atmosphere unhindered.

During an eclipse, the only sunlight reaching the moon will be at the red end of the spectrum, giving the so-called “blood moon” its distinctive hue.

“The more dust or clouds in Earth’s atmosphere during the eclipse, the redder the Moon will appear,” according to NASA. “It’s as if all the sunrises and sunsets in the world were projected onto the Moon.”

The red moon should be visible to the naked eye in most of North America, South America, Africa and Europe. Although those who live near bright lights and tall buildings will have a harder time getting a glimpse.

The moon will appear red because of something called Rayleigh scattering, the same process that makes skies blue and sunsets red.

“That’s the great thing about lunar eclipses is that you don’t need any gear other than a passion and interest in being outdoors and a clear horizon,” Noah said. Petro, head of NASA’s Planetary Geology, Geophysics and Geochemistry Laboratory, told CNN.

Those without a clear view can always stream the action on the NASA YouTube feed.

The astro-curious must act quickly if they want to see the red moon.

The next total lunar eclipse will take place on November 8, then we will have to wait until March 2025 to see one again.

The Independent Gt

Not all news on the site expresses the point of view of the site, but we transmit this news automatically and translate it through programmatic technology on the site and not from a human editor.