Biggest, brightest moon of the year —
JUNE 24 - CAPE SOUNION, GREECE: A Supermoon rises next to the ancient Greek temple of Poseidon at Cape Sounion, approximately 65 kilometers south of Athens, on June 23. A Supermoon happens when the moon is full and at the same time reaches its perigee -- the closest point to Earth in its orbit, according to NASA.