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See the 'Super Worm Moon' Rise with the Spring Equinox Today!

March's full moon is a special one. Not only is it a slightly larger than the usual "supermoon," but it also will mark the beginning of spring in the Northern Hemisphere and fall in the Southern Hemisphere.

The exact moment the “Super Worm Moon” turns full is Wednesday (March 20) at 9:43 p.m. EDT (0143 GMT on March 21), just 4 hours after the vernal equinox. That's when day and night on Earth are the same length, signaling the changing of the seasons.

The full moon will also happen just one day after it reaches its closest point to Earth in its elliptical or oval-shaped orbit, making it a supermoon since it appears a little larger than the typical full moon. (But at only 10 percent larger than usual, don't expect to see a big difference.)

Related: How the 'Supermoon' Looks (Infographic)

A supermoon climbed its way to the top of the Washington Monument, Sunday, June 23, 2013, in Washington as seen in the amazing space wallpaper. This year the supermoon is up to 13.5 percent larger and 30 percent brighter than a typical full moon is.

(Image credit: NASA/Bill Ingalls )

Luckily for sky observers, the moon is very easy to spot – even if you are in an area with a lot of lights. It will be visible in the constellation Virgo. The moon will rise about 7 p.m. local time on Wednesday and remain visible through the night, setting around 7:30 a.m. on Thursday (March 21), according to the U.S. Naval Observatory.

There's no need to use fancy equipment – the moon is visible with your bare eyes – but if you have binoculars or a telescope, you might be able to pick out some features on the surface. However, it's easier to spot craters and mountains when the moon is in partial shadow and shadows around these features are visible on the surface. 

 Super Worm Moon webcasts 

If it's cloudy or too cold to go outside, you're also covered with virtual webcasts. 

The Virtual Telescope Project will host the supermoon rising above the famous monuments of Rome starting on Wednesday at 12:45 p.m. EDT (1645 GMT). The event is run in conjunction with the Dark Skies for All project of the International Astronomical Union, an initiative to promote awareness about light pollution and advocate for solutions to keep the sky dark for astronomy. The full broadcast will run at

Slooh will also broadcast live coverage on Wednesday starting at 2 p.m. EDT (1800 GMT). Slooh's resident storyteller, Helen Avery, will do a broadcast from Stonehenge — a famous World Heritage Site featuring stone pillars, and a traditional gathering spot for the equinox. Also on the show will be astrophotographer Mike Shaw, as well as Slooh hosts Paul Cox and Paige Godfrey. 

You can watch the Slooh webcast live here on will also stream live on and Slooh's Facebook page.

Editor's note: If you capture an amazing photo or video of the Super Worm Equinox Moon and would like to share it with for a story or a gallery, send images and comments to

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Elizabeth Howell
Staff Writer, Spaceflight

Elizabeth Howell, Ph.D., is a staff writer in the spaceflight channel since 2022. She was contributing writer for (opens in new tab) for 10 years before that, since 2012. As a proud Trekkie and Canadian, she also tackles topics like diversity, science fiction, astronomy and gaming to help others explore the universe. Elizabeth's on-site reporting includes two human spaceflight launches from Kazakhstan, three space shuttle missions in Florida, and embedded reporting from a simulated Mars mission in Utah. She holds a Ph.D. and M.Sc. in Space Studies from the University of North Dakota, and a Bachelor of Journalism from Canada's Carleton University. Elizabeth is also a post-secondary instructor in communications and science since 2015. Her latest book, Leadership Moments from NASA, is co-written with astronaut Dave Williams. Elizabeth first got interested in space after watching the movie Apollo 13 in 1996, and still wants to be an astronaut someday.