The new year offers a real treat for skywatchers with three lunar events

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Earth's sunrises and sunsets reaching the moon, NASA scientist Noah Petro told Space.com.

If someone stood on the moon during a total lunar eclipse, Earth would appear to have a reddish ring all around it, as the person would gaze at the 360-degree sunrise and sunset they'd perceive at that particular intersection of Earth and lunar orbits.

During a lunar eclipse, Earth blocks most of the sunlight that normally reaches the moon. This NASA illustration is not to scale.

When the lunar eclipse begins, the bright moon dims as it enters the outer part of Earth's shadow, called the penumbra.

The deep tint of a full lunar eclipse is visible once the moon enters the deepest part of Earth's shadow, or umbra. The bright-red color appears once the moon is fully engulfed in the shadows, and it's the reason "blood" moon is a popular moniker for lunar eclipses.

To a certain extent, lunar eclipses reveal something about Earth, too.

 

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