Astronomy Picture of the Day . A Green Flash of Spring . ... 9.04.2016 . ... Explanation: Taken on March 20 from the top of Haleakala on the isle of Maui, planet Earth, the first sunrise of northern spring is pictured in this vacation snapshot. The telephoto view from the volcanic caldera above a sea of clouds also captures an elusive green flash near the Sun's upper limb. ... April . ... Publications with keywords: green flash - sunrise . Publications with words: green flash - sunrise . ...