2024年1月15日 Star Cluster IC 348 from Webb Image Credit: NASA, ESA, CSA, STScI, and K. Luhman (Penn State U.) and C. Alves de Oliveira (ESA) Explanation: Sometimes, it’s the stars that are the hardest to see that are the most interesting. IC 348 is a young star cluster that illuminates surroundi […]
2024年1月14日 Dragon Aurora over Iceland Image Credit & Copyright: Jingyi Zhang & Wang Zheng Explanation: Have you ever seen a dragon in the sky? Although real flying dragons don’t exist, a huge dragon-shaped aurora developed in the sky over Iceland in 2019. The aurora was caused by a hol
2024年1月3日 A SAR Arc from New Zealand Image Credit & Copyright: Tristian McDonald; Text: Tiffany Lewis (Michigan Tech U.) Explanation: What is that unusual red halo surrounding this aurora? It is a Stable Auroral Red (SAR) arc. SAR arcs are rare and have only been acknowledged and studied since 1
2023年12月27日 Rainbow Aurora over Icelandic Waterfall Image Credit & Copyright: Stefano Pellegrini Explanation: Yes, but can your aurora do this? First, yes, auroras can look like rainbows even though they are completely different phenomena. Auroras are caused by Sun-created particles being chann
2023年12月12日 Aurora and Milky Way over Norway Image Credit & Copyright: Giulio Cobianchi Explanation: What are these two giant arches across the sky? Perhaps the more familiar one, on the left, is the central band of our Milky Way Galaxy. This grand disk of stars and nebulas here appears to enci
2023年11月6日 Red Aurora over Italy Image Credit & Copyright: Giorgia Hofer Explanation: What was that red glow on the horizon last night? Aurora. Our unusually active Sun produced a surface explosion a few days ago that sent out a burst of electrons, protons, and more massive charged nuclei. This
2023年11月5日 Creature Aurora Over Norway Image Credit & Copyright: Ole C. Salomonsen (Arctic Light Photo) Explanation: It was Halloween and the sky looked like a creature. Exactly which creature, the astrophotographer was unsure (but possibly you can suggest one). Exactly what caused this eerie a
2023年10月22日 Ghost Aurora over Canada Image Credit & Copyright: Yuichi Takasaka, TWAN Explanation: What does this aurora look like to you? While braving the cold to watch the skies above northern Canada early one morning in 2013, a most unusual aurora appeared. The aurora definitely appeared to
2023年8月15日 A Triply Glowing Night Sky over Iceland Credit & Copyright: Wioleta Gorecka; Text: Natalia Lewandowska (SUNY Oswego) Explanation: The Sun is not the quiet place it seems. It expels an unsteady stream of energetic electrons and protons known as the solar wind. These charged particles
2023年7月30日 Spiral Aurora over Icelandic Divide Image Credit & Copyright: Juan Carlos Casado (Starry Earth, TWAN) Explanation: Admire the beauty but fear the beast. The beauty is the aurora overhead, here taking the form of a great green spiral, seen between picturesque clouds with the bright Mo
