... Star Trails Above Mauna Kea . ... M83: The Southern Pinwheel Galaxy from VLT . ... But a Full Moon won't occur on this calendar date for another 19 years, a period known as the lunar Metonic cycle. ... In the center of star-forming region 30 Doradus lies a huge cluster of the largest, hottest, most massive stars known. These stars, known as the star cluster R136, and part of the surrounding nebula are captured here in this gorgeous visible-light image from the Hubble Space Telescope. ...