保护地球，探索宇宙，发现文明
2024年1月8日 The Phases of Venus Image Credit & License: Stéphane Gonzales Explanation: Venus goes through phases. Just like our Moon, Venus can appear as a full circular disk, a thin crescent, or anything in between. Venus, frequently the brightest object in the post-sunset or pre-sunrise sky, appears so small, however, that it usually requires binoculars ...
2023年12月25日 Cathedral, Mountain, Moon Image Credit & Copyright: Valerio Minato Explanation: Single shots like this require planning. The first step is to realize that such an amazing triple-alignment actually takes place. The second step is to find the best location to photograph it. But it was the third step: being there at exactly the right time ̵...
2023年12月4日 Plane Crossing Crescent Moon Image Credit & Copyright: Juned Patel Explanation: No, the Moon is not a bow, and no, it did not shoot out a plane like an arrow. What is pictured is a chance superposition. The plane’s contrail would normally appear white, but the large volume of air toward the rising Sun preferentially knocked away blue li...
2023年10月19日 A Sunrise at Sunset Point Image Credit & Copyright: Martin Ratcliffe Explanation: This timelapse series captured on October 14 is set against the sunrise view from Sunset Point, Bryce Canyon, planet Earth. Of course on that date the New Moon caught up with the Sun in the canyon’s morning skies. Local temperatures fell as the Moon’...
2023年10月16日 Eclipse Rings Image Credit & Copyright: Jerry Zhang (left), Baolong Chen (photographer) & Amber Zhang (right) Explanation: She knew everything but the question. She was well aware that there would be a complete annular eclipse of the Sun visible from their driving destination: Lake Abert in Oregon. She knew that the next ring-of-fire ec...
2023年10月5日 Ring of Fire over Monument Valley Image Credit & Copyright: Tunc Tezel (TWAN) Explanation: Tracking along a narrow path, the shadow of a new moon will race across North, Central, and South America, on October 14. When viewed from the shadow path the apparent size of the lunar disk will not quite completely cover the Sun though. Instead, the m...
2023年5月6日 Twilight in a Flower Image Credit & Copyright: Dario Giannobile Explanation: Transformed into the petals of a flower, 16 exposures show the passage of day into night in this creative timelapse skyscape. Start at the top and move counterclockwise to follow consecutive moments as the twilight sky turns an ever darker blue and night blossoms. Eac...
2022年10月27日 Sunset, Moonset, Taj Mahal Image Credit & Copyright: Neelam and Ajay Talwar (TWAN) Explanation: On October 25th, Sun and New Moon set together as seen from Agra, India. Their close conjunction near the western horizon, a partial solar eclipse, was captured in this elevated view in hazy skies near the solitary dome of the Taj Mahal. Of course...
2022年2月3日 Embraced by Sunlight Image Credit & Copyright: Juan Luis Cánovas Pérez Explanation: Even though Venus (left) was the brightest planet in the sky it was less than 1/30th the apparent size of the Moon on January 29. But as both rose before the Sun they shared a crescent phase. For a moment their visible disks were each about 12 percent illuminat...
2022年1月6日 The Last Days of Venus as the Evening Star Image Credit & Copyright: Tamas Ladanyi (TWAN) Explanation: That’s not a young crescent Moon posing behind cathedral towers after sunset. It’s Venus in a crescent phase. About 40 million kilometers away and about 2 percent illuminated by sunlight, it was captured with camera and telephoto ...