2022年4月16日 Orion Pines Image Credit & Copyright: Juan Carlos Casado (Starry Earth, TWAN) Explanation: Taken with a camera fixed to a tripod, many short exposures were aligned with the stars to unveil this beautiful, dark night sky. Captured near the rural village of Albany`a at the northeastern […]
2022年4月15日 The Gator-back Rocks of Mars Image Credit: NASA, JPL-Caltech, MSSS Explanation: Wind-sharpened rocks known as ventifacts, cover this broad sloping plain in the foot hills of Mount Sharp, Gale crater, Mars. Dubbed gator-back rocks their rugged, scaly appearance is captured in these digital
2022年4月14日 Messier 96 Image Credit & Copyright: Mark Hanson and Mike Selby Explanation: Spiral arms seem to swirl around the core of Messier 96 in this colorful, detailed portrait of a beautiful island universe. Of course M96 is a spiral galaxy, and counting the faint arms extending beyond the
2022年4月13日 Milky Way over Devils Tower Image Credit & Copyright: MaryBeth Kiczenski Explanation: What created Devils Tower? The origin of this extraordinary rock monolith in Wyoming, USA is still debated, with a leading hypothesis holding that it is a hardened lava plume that never reached the
2022年4月12日 N11: Star Clouds of the LMC Image Credit: NASA, ESA; Processing: Josh Lake Explanation: Massive stars, abrasive winds, mountains of dust, and energetic light sculpt one of the largest and most picturesque regions of star formation in the Local Group of Galaxies. Known as N11, the region i
2022年4月11日 A Space Station Crosses a Busy Sun Image Credit & Copyright: Wang Letian (Eyes at Night) Explanation: Typically, the International Space Station is visible only at night. Slowly drifting across the night sky as it orbits the Earth, the International Space Station (ISS) can be seen as
2022年4月9日 Mars-Saturn Conjunction Image Credit & Copyright: Damian Peach Explanation: Fainter stars in the zodiacal constellation Capricornus are scattered near the plane of the ecliptic in this field of view. The two brightest ones at center aren’t stars at all though, but the planets Ma
2022年4月8日 Hale-Bopp: The Great Comet of 1997 Image Credit & Copyright: Stefan Seip (TWAN) Explanation: Only twenty-five years ago, Comet Hale-Bopp rounded the Sun and offered a dazzling spectacle in planet Earth’s night skies. Digitized from the original astrophoto on 35mm color slide fil
2022年4月7日 Messier 24: Sagittarius Star Cloud Image Credit & Copyright: Gabriel Rodrigues Santos Explanation: Unlike most entries in Charles Messier’s famous catalog of deep sky objects, M24 is not a bright galaxy, star cluster, or nebula. It’s a gap in nearby, obscuring interstellar
