menu
close
subscribe

Enjoying EarthSky? Subscribe.

0 subscribers and counting ...

Full moon is September 24-25

By in Moon Phases | 2 days ago

Here’s why a full moon looks full.

What is a waxing gibbous moon?

By in Moon Phases | 3 days ago

We’ve now passed first quarter moon, and the moon is waxing toward full. Full moon will come on September 24-25, 2018.

1st quarter moon is September 16

By in Moon Phases | 6 days ago

The 1st quarter moon comes on September 16 at 23:15 UTC. As viewed from the whole Earth, it’s high up at sunset, looking like half a pie.

What is a waxing crescent moon?

By in Moon Phases | 2 weeks ago

You’ll always see a waxing crescent moon in the west after sunset. It’s a setting moon, due to follow the sun below the western horizon.

What is a waning crescent moon?

By in Moon Phases | 2 weeks ago

A waning crescent moon is up in the east before sunrise. It’s waning toward new moon, when the moon will be between the Earth and sun.

What’s the youngest moon you can see?

By in Astronomy Essentials | Moon Phases | 4 months ago

In modern times, as astrophotographer Thierry Legault proved in 2013, it’s possible to capture a moon in a photograph at the instant the moon is new. What about young moon sightings using only your eye? The youngest moons, here.

Do we all see the same moon phase?

By in Astronomy Essentials | Moon Phases | 5 months ago

One Earth. One sky. One moon phase (more or less) from all of Earth. So why (and how) does the moon look different from different parts of Earth?

Top 4 keys to mastering moon phases

By in Moon Phases | 7 months ago

The most important key is to think of the moon as a world in space, with a day and night side.

Quarter moon or a half moon?

By in Moon Phases | 2 years ago

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.’