2021 moon phases, with distances from Earth

2021 moon phases in a chart format. Dates closest to new moon provide the darkest skies and the best opportunities for stargazing and meteor-watching.

Great chance to spot a very young moon April 12

From central North America on April 12, 2021, the moon will be less than 24 hours old. On April 12 at sunset, as soon as the sun slips below the horizon, the race begins to spot a young moon, less than a day old ... before it sets!

People sleep less before a full moon

Researchers find that whether you live in a rural or urban environment, your sleep patterns are affected by the full moon. On the nights leading up to full moon, people fall asleep later and sleep less overall.

Do we all see the same moon phase?

No matter where you are on the globe, we all see the same moon. So why do photos from a distant location sometimes look different from what you're seeing?

Top 4 keys to understanding moon phases

How can you understand what causes the various phases of the moon? Four tips, here.

Moon phases 2021 in text format

Read a list of the phases of the moon for all of 2021.

Quarter moon or a half moon?

Half the moon always faces us. And half the moon is always lit by the sun. But, in the language of astronomers, there are no 'half moons.'