The Summer's Brightest Supermoon is Out Tonight!

The full moons of this summer — July 12, August 10 and September 9 — are supermoons, as NASA calls them. The phenomenon happens when the moon becomes full on the same day as its perigee — the point in the moon's orbit when it's closest to Earth.

While some are calling it a supermoon, the astronomical community prefers to use the term “perigee full moon,” and point out that they are not all that rare since the alignment between a full moon phase with perigee occurs 

Stop and stargaze this weekend as an “extra supermoon” and Perseid meteor shower are set to light up the sky. A supermoon is when the full moon is in close orbit with Earth, making it bigger and brighter. This weekend's 

The supermoon occurs when the moon becomes full at the closest point in its orbit to Earth, called a perigee full moon. Although there has already been a supermoon this year on July 12, this one will be particularly striking. It will become full at the

This is a “Supermoon,” the closest and largest full moon in 2014. When the moon is full as it makes its closest pass to Earth, it becomes a “Supermoon,” and will be up to 31,000 miles closer to Earth than other full moons this