What is the moon phase today? Today, Sep. 21, 2024, the moon is 18 days old and is in the Waning Gibbous phase of its lunar cycle. It is 81% illuminated. Moon phases reveal the passage of time in ...

Moon watchers will get a special treat this month: September's full "harvest" moon is also a supermoon, meaning it's slightly bigger and brighter than an average moon. The full moon will be ...

Earth will get a second moon for about two months this year when a small asteroid begins to orbit our planet. The asteroid was discovered in August and is set to become a mini-moon, revolving ...

For nearly two months this year, Earth’s moon will have company — a second moon. Technically, it isn’t a second moon, but rather an asteroid from the Arjuna asteroid belt — named 2024 PT5 ...

Go look for the moon today and you won’t find it. With our only natural satellite roughly between Earth and the sun, it will be lost in the glare of our star as seen from our planet. The new ...

As the nights grow long and the temperatures cool in the Northern Hemisphere, a new moon famed for its brightness and orange hue will rise in the sky. The Harvest Moon, which has inspired no ...

Details about the ephemeral mini-moon and the horseshoe-shaped path it travels were published this month in the Research Notes of the American Astronomical Society. Astronomers first spotted the ...

This will be the third and closest of four supermoons in a row for 2024. A supermoon occurs when the full moon coincides with the moon being at the point in its orbit within 90% of its closest ...

Although many lunar phenomena are one-night-only events, a ring around the moon is much less elusive. Also known as a lunar halo, a bright white ring of light around the moon can appear anytime ...

This week, the moon has been hanging out with not one, but three different planets on three different days. The three planets -- Jupiter, Mars and Mercury -- have been in conjunction with the moon ...

As the name would suggest, the upcoming full moon is a rare occurrence that won't happen again until 2037 Kelsie Gibson is the SEO Editor of PEOPLE. She has been working at PEOPLE since 2021.

Starting in late September, Earth is going to have a second moon for two brief months, as a small asteroid piece will be incorporated into the planet's orbit before heading back into outer space.