Nasa research scientists said that supermoons were "a great opportunity for people to start looking at the moon".
Because Earth will be at its closest to the sun in early January, Monday's moon was also up to 30 percent brighter.
The third supermoon has skygazers excited - as the second full moon in a calendar month it will become a "blue moon", and it will coincide with a lunar eclipse, making it a "blood moon".
Previous year the moon made its closest approach to the Earth since 1948, and it won't be this close again until November 25, 2034.
Check out these lovely images of the supermoon from different areas of the world.
Facebook launches messenger for kids
Facebook's child-friendly venture comes as other tech companies like YouTube struggle with kid content on their platform. With more than 2 billion monthly users, Facebook can't exactly guarantee that it's going to be a safe place for kids.
Quake detected near North Korea nuclear site
McMastersaid Saturday that the chances of war between North Korea and the United States are "increasing every day". "The US aircraft that have landed on South Korea include six F-22s, six F-35s, six EA-18Gs", the official said.
Don't know about others but Sanjay Bhansali has definitely offended me: Salman
Sources of parliamentary said they have reached out to Bhansali but he appeared to be shying away from appearing before the panel. Bhagat Singh Koshiyari, Lok Sabha panel chairman told The Indian Express , "Two MPs had given petitions before us.
A supermoon can only happen if it's a full moon and if the moon is closer to Earth than usual.
In the morning light, the 2017 supermoon drifted over the horizon, disappearing from view until next year.. Kumar photographed the supermoon near Boulder, Colorado. ABC7 viewers went outside to catch a glimpse of the supermoon and shared incredible photos using #abc7eyewitness.
"It's the first time I've seen a supermoon - it was so thrilling".
This is what the supermoon looked like for astronauts at the International Space Station.
If you missed this one, there are two more Supermoons coming very soon in 2018.