This eclipse will be the longest one of the century, and of the past 580 years.
The moon's phases are caused by changes in the amount of illumination from the moon that is visible from the Earth's surface as the moon orbits our planet each month. There are eight distinct phases every month, four of them occurring roughly a week apart. They are: the New Moon; Waxng Crescent; First Quarter (or half-full; Waxing Gibbous; Full Moon; Waning Gibbous; Last Quarter (half-full on other side); Waning Crescent. You can read definitions for these moon phases here. When the moon is full and at its closest point to the Earth in it's orbit, it is known as a "Supermoon." Lunar eclipses occur during full moons, when the moon passes through all or part of Earth's shadow. During New Moons, the moon can cover part or all of the sun's disk, creating a solar eclipse. Learn more about the moon's phases here.
Related Topics: The Moon
On Nov. 19, a partial lunar eclipse will reward patient sky observers with a view of a subtly changing moon and is a must-see event as it's the last lunar eclipse of the year.
The new moon occurs Saturday (Dec. 4) at 2:43 a.m. EST (0743 GMT), along with a total solar eclipse.
The full moon of Wednesday (Oct. 21), known by many as the "Hunter's Moon," provided a celestial treat for skywatchers around the world.
The Hunter's Moon rises tonight, marking the first full moon of the fall season in the northern hemisphere.
October's full moon and the peak of the Orionid meteor shower are happening on the same day this week.
October's full moon, known as the Hunter's Moon, will occur at 10:57 a.m. EDT (1457 GMT) on Oct. 20, according to NASA.
The moon stars in live webcasts tonight NASA and lunar enthusiasts celebrate International Observe the Moon 2021.
Stargazers across the globe celebrated this year's magical Harvest Moon, which marked the end of the summer season just two days before the autumnal equinox.
The full moon of September 2021 also carries the title of the Harvest Moon for those living in the Northern Hemisphere.
Venus and the bright star Spica will shine in the evening sky tonight (Sept. 5). Mercury is visible, too.
A rare seasonal "Blue Moon" wowed skywatchers Sunday (Aug. 22), marking the last time this type of moon will grace the sky until 2023.
Step outside around 45 minutes after sunset on Saturday evening (Aug. 21) and in a single glance you'll be able to partake in a gathering of the moon and the biggest planet of our solar system.
The full moon of August arrives Sunday (Aug. 22), after it makes a close pass to Jupiter and Saturn.
We usually associate the term Blue Moon with a month containing two full moons. That won't happen in August, yet this month brings a Blue Moon nonetheless.