2019 March 26 AE Aurigae and the Flaming Star Nebula Image Credit & Copyright: Amir Abolfath (TWAN) Explanation: Is star AE Aurigae on fire? No. Even though AE Aurigae is named the flaming star, the surrounding nebula IC 405 is named the Flaming Star Nebula, and the region shape gives the appea […]
2019 March 25 Arp 194: Merging Galaxy Group Image Credit: NASA, ESA, Hubble; Processing & License: Judy Schmidt Explanation: Why are stars forming in the bridge between these colliding galaxies? Usually when galaxies crash, star formation is confined to galaxy disks or tidal tails. In Arp 194,
2019 March 24 Zooming in on Star Cluster Terzan 5 Video Credit: Nick Risinger (skysurvey.org), DSS, Hubble, NASA, ESA, ESO; Music: Johan B. Monell Explanation: Globular clusters once ruled the Milky Way. Back in the old days, back when our Galaxy first formed, perhaps thousands of globular clusters
2019 March 23 Four Towers and the Equinox Moon Image Credit & Copyright: Javier Martinez Moran Explanation: The first Full Moon of northern spring rises behind four distant towers in this telescopic view. In an image captured from some 40 kilometers west of the city of Madrid, this moonrise also
2019 March 22 北方冬季天空的交响乐 A Symphony in Northern Winter Skies 图片来源及版权：Lorenzo Ranieri Tenti Image Credit & Copyright: Lorenzo Ranieri Tenti 描述：尽管天气很冷，但有机会看到闪烁的北极光，这名天文爱好者来到了位于基维诺半岛西海岸的苏必利尔湖结冰的湖面上，并以此作为天籁渐强的奖励。在2月28日/ 3月1日晚上10点到凌晨1点之间拍摄的图片中，北方冬末的夜空也划过全景式的画面构图制作。在左边，一束微弱的黄道光从地平线上突然升起，穿过火星和昴宿星团。遥远的M
2019 March 21 Star Trails and the Equinox Sunrise Image Credit & Copyright: Juan Carlos Casado (TWAN, Earth and Stars) Acknowledgement: Andrea Rodriguez Anton Explanation: Stars trail and the Sun rises in this night and day composite panorama made on March 19. The view looks toward the eastern h
2019 March 20 Equinox on Planet Earth Image Credit: NASA, Meteosat, Robert Simmon Explanation: Welcome to an equinox on planet Earth. Today is the first day of spring in our fair planet’s northern hemisphere, fall in the southern hemisphere, with day and night nearly equal around the globe. At
2019 March 19 Abell 370: Galaxy Cluster Gravitational Lens Image Credit: NASA, ESA, Hubble; Processing & Copyright: Rogelio Bernal Andreo (DeepSkyColors.com) Explanation: What are those strange arcs? While imaging the cluster of galaxies Abell 370, astronomers noticed an unusual arc. The arc was
2019 March 18 Horsehead and Orion Nebulas Image Credit & Copyright: Mario Zauner Explanation: The dark Horsehead Nebula and the glowing Orion Nebula are contrasting cosmic vistas. Adrift 1,500 light-years away in one of the night sky’s most recognizable constellations, they appear in oppos
2019 March 17 M106: A Spiral Galaxy with a Strange Center Image Credit: NASA, ESO , NAOJ, Giovanni Paglioli; Assembling and Processing: R. Colombari and R. Gendler Explanation: What’s happening at the center of spiral galaxy M106? A swirling disk of stars and gas, M106’s appearance is do
