1. AP IMAGE: Supermoon over New York April 6, 2012

2. SOUNBITE (English) Michelle Thalller, Nasa Scientist: "A supermoon occurs when a full moon happens very close to perigee. What is perigee? Perigee is the moon's closest approach to the Earth every month. That distance to perigee actually varies a little bit month to month. So not only is the moon at its closest approach for the month, this perigee is a little closer than normal. So we have a bit of a double whammy of things making the moon a little bigger. And because of that, the full moon will appear about 12% bigger than the average full moon, which is not a huge difference, but that can actually make it as much as 30% brighter. So it'll be a big, full moon and that's a supermoon."

3. COURTESY: NASA: Broll of Moon

4. SOUNBITE (English) Michelle Thalller, Nasa Scientist: "The actual moment of the supermoon, the moment when it's the closest and the most full, is about 7:30 AM on Sunday morning. That's actually after the moon has set for most of us, so I would say go out at sunset on Saturday. You'll see that gorgeous, slightly larger, brighter full moon rising over the horizon. I always find that when you see it near the horizon it looks bigger anyway, so you'll get a wonderful effect. Naturally a bigger full moon, it really is bigger, it even looks bigger by the horizon, so I would say sunset is the best time to see it wherever you are."

5.COURTESY: NASA: Broll of Moon

6.SOUNBITE (English) Michelle Thalller, Nasa Scientist: "it's kind of interesting to realize that the moon does change size. Sometimes it's a little bit smaller, sometimes it's a little bit larger. But this isn't something that the scientific community pays a lot of attention to"


The biggest and brightest full moon of the year graces the sky early Sunday as our celestial neighbor swings closer to Earth than usual.

While the moon will appear 14 percent larger normal, most skywatchers won't be able to notice the difference. Still, astronomers say it's worth looking up and appreciating the cosmos.

The moon will be closest and turn full around 7:30 a.m. EDT, making it the best time to view.

As in any supermoon event, high tides are forecast because of the moon's proximity, but the effect is expected to be small.

Forget about the myths that swirl every time a supermoon appears. There's no link to higher crime or bizarre behavior. Scientists say that's just lunacy.