The supermoon eclipse is set to occur on Sept. 27 offering skywatchers in North and South America, western Asia, Europe, Africa and the Eastern Pacific Ocean region with the chances to witness the rare celestial treat.
A supermoon occurs when Earth's natural satellite appears to be abnormally large and bright in the sky, which happens when the moons reaches its full phase at or near its closest approach to our planet.
A lunar eclipse happens when the moon passes in the shadow of the Earth, which results in the light from the sun being blocked by our planet.
The Sept. 27 phenomenon is considered as something special because it seldom happens that a supermoon and an eclipse happen simultaneously.
The last one occurred in 1982 and for those who would miss the coming celestial show, their next chance would be after almost two decades since the next supermoon eclipse is set to take place in 2033.
Noah Petro, from NASA's Goddard Space Flight Center in Greenbelt, Maryland said that a supermoon and lunar eclipse occurring simultaneously is just planetary dynamics.
"The orbit of the moon around Earth is inclined to the axis of Earth and the orbital plane of all these things just falls into place every once in a while," Petro said. "When the rhythms line up, you might get three to four eclipses in a row or a supermoon and an eclipse happening."
This phenomenon, however, only occurs once in every few decades, which makes it rarer than lunar eclipse and a supermoon happening separately. Petro said that an entire generation may not have seen a supermoon lunar eclipse occur.
The occurrence of this rare astrological event already had some fearing that the end of the world is near. Some Christians believe that the event could be the beginning of terrible events based on a Bible passage that says "The sun shall be turned into darkness, and the moon into blood, before the great and the terrible day of the Lord comes."
Experts, however, said that the event, which is expected to last one hour and 12 minutes, should pose no concern.
"The only thing that will happen on Earth during an eclipse is that people will wake up the next morning with neck pain because they spent the night looking up," Petro said.
The supermoon will slightly dim starting 8:11 p.m. EDT on Sept. 27 and the total eclipse is expected to start at 10:11 PM.