The full-moon will be the closer to the Earth this Sunday night than any other night this year.
The once-a-year spectacle, dubbed a "super moon", will see the moon drift 14 percent nearer to Earth than normal and shine 30 percent brighter.
The moon will be closest at 1.30pm (AEST), at just 356,955km away — one of its closest brushes in 18 years.
Astronomers say the closer moon will cause tides to be higher, but it has never been proven to cause people to act crazily.
Ninemsn is urging readers to get their cameras out and snap the moon at its brightest for a "super moon" slideshow to appear on the website.