Caption: This breathtaking photograph was captured on 17 June 2023, near Keetmanshoop, Namibia, with a smartphone. Dominating the night sky, the majestic arc of the Milky Way creates a celestial bridge across the heavens. The image captures a range of notable astronomical objects: the Large and Small Magellanic Clouds, seen towards the bottom of the image and appearing as fuzzy clouds; Antares, seen towards the top left of the image; and the coalsack nebula (referred to by various names by Indigenous cultures around the world), seen vertically above the Large Magellanic Cloud. Silhouetted against this astral backdrop, the trees — which are actually succulent aloe plants native to southern Africa — add a touch of Earth's unique beauty. Historically, these plants were known as ‘quiver trees’ because groups of local Indigenous people would use their hollowed branches to hold darts. The serene Namibian landscape, combined with the brilliance of the southern hemisphere's stars, offers a glimpse into the majesty of our Universe.
Credit: Jianfeng Dai/IAU OAE (CC BY 4.0)

Caption: 2023 年 6 月，在納米比亞，H.E.S.S 天文臺的天空一片漆黑，組成銀河系的恆星似乎數不勝數，讓人難以在這張用智能手機拍攝的照片上分辨星座。在照片左下方的塔附近，可見半人馬座阿爾法星和貝塔星。在照片左側的 H.E.S.S 望遠鏡右上方，可見一顆橙色恆星——心宿二，位於天蠍座心臟的一顆紅巨星。
Credit: Jianfeng Dai/IAU OAE (CC BY 4.0)

Caption: This time-lapse documents the trajectory of the iconic Big Dipper across three frames taken in July 2020. Captured from three locations in Italy, Tre Cime di Lavaredo Auronzo di Cadore, Monte Rite, Cibiana di Cadore, and Casera Razzo, Vigo di Cadore, this visual odyssey showcases the captivating journey of the Big Dipper with the addition of trails of stars painting a celestial canvas. It not only traces the path of this renowned asterism but also features the rare appearance of comet Neowise C/2020 F3, an extraordinary event that graced our skies during July 2020.
Credit: Giorgia Hofer/IAU OAE (CC BY 4.0)

Caption: This video shows the Milky Way’s sprawling brilliance across the celestial expanse. Among the stars’ grand theatre, the Southern Cross constellation claims its place in the scene, distinguished by its distinctive cross shape as seen in the top of this video and slightly to the right just over the Milky Way, slowly disappearing as the video progresses. This celestial marker, a prominent feature in the southern hemisphere, holds cultural and navigational significance, having served as a navigational guidepost for centuries. Accompanying the Milky Way’s grandeur are the two Magellanic clouds, celestial companions seen dancing in the distant sky. The Carina Nebula adds its ethereal glow to the cosmic panorama, painting a radiant hue against the darkness. In the midst of this celestial ballet, a gentle green hue envelops the atmosphere, a phenomenon known as airglow, adding a touch of subtle luminescence to the night sky. The terrestrial also makes an appearance, with planes flying overhead and vehicles driving between observatory buildings. This time-lapse, taken from the La Silla Observatory in Chile, is a window to the captivating dance of stars, offering a glimpse into the awe-inspiring beauty of our galaxy and the celestial landmarks that grace the southern sky.
Credit: José Rodrigues/IAU OAE (CC BY 4.0)