― The Moon will appear bigger and brighter this weekend - at least from our perspective on Earth. ∙ The perigee full moon (also known as the Supermoon) will be closer to the Earth than usual. This Supermoon will be 16% brighter than most when it begins on Saturday at 11:35 a.m. EDT. ∙ Perigee moons are about 14% bigger and 30% brighter than lesser moons that occur on the apogee side of the Moon's orbit. ∙ A perigee full Moon brings with it extra-high ‘perigean tides,’ [...].