The upcoming supermoon on Monday will be the closest full moon to the earth in 69 years, according to NASA.
The administration also said people on the earth won't see the phenomenon like this until 2034.
The orbit of the moon around the earth is elliptical, which makes the distance between the two objects change at times. When a full moon makes its closest approach to the earth, it looks bigger and brighter than usual. And we call it a "supermoon."
According to NASA, a supermoon appears to be between 14 percent and 30 percent brighter than a regular full moon.
In late September 2015, a total lunar eclipse synchronized with a supermoon, which brought stargazers across the globe a once-in-a-blue-moon view.
