保护地球，探索宇宙，发现文明
2023年12月5日 Energetic Particle Strikes the Earth Illustration Credit: Osaka Metropolitan U./L-INSIGHT, Kyoto U./Ryuunosuke Takeshige Explanation: It was one of the most energetic particles ever known to strike the Earth — but where did it come from? Dubbed Amaterasu after the Shinto sun goddess, this particle, as do all cosmic rays that strike the Earth...
If spacecraft are to visit the outer solar system, they must cross the asteroid belt between Mars and Jupiter. The Pioneer mission was faced with the question of just how dangerous this asteroid belt would be to a spacecraft passing through it. Image Credit: NASA This illustration made on Nov. 26, 1974, by Rick Giudice shows the Pioneer 10 spacecraft traveli...
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...
“I want to help the Native community get better representation and show that we can help Native citizens get into aerospace engineering, mathematics, or [other STEM career fields]. And the Cherokee and Choctaw Nations are trying to do the same thing on their reservations. They have amazing education networks, so when I realized what they were doing, I wanted...
2023年12月3日 Moon Setting Behind Teide Volcano Video Credit & Copyright: Daniel López (El Cielo de Canarias); Music: Piano della Moon (Dan Silva) Explanation: These people are not in danger. What is coming down from the left is just the Moon, far in the distance. Luna appears so large here because she is being photographed through a telescopic lens. What ...
2023年12月2日 Startrails over Beijing Ancient Observatory Image Credit & Copyright: Jeff Dai (TWAN) Explanation: You can take a subway ride to visit this observatory in Beijing, China but you won’t find any telescopes there. Starting in the 1400s astronomers erected devices at the Beijing Ancient Observatory site to enable them to accurately measure ...
2023年12月1日 Milky Way Rising Image Credit & Copyright: José Rodrigues Explanation: The core of the Milky Way is rising beyond the Chilean mountain-top La Silla Observatory in this deep night skyscape. Seen toward the constellation Sagittarius, our home galaxy’s center is flanked on the left, by the European Southern Observatory’s New Technolo...
一组被称为“蜘蛛脉冲星”的死亡恒星正在吞噬它们所及范围内的伴星。数据来自NASA的钱德拉X射线天文台。
2023年11月30日 Artemis 1: Flight Day 13 Image Credit: NASA, Artemis I Explanation: On flight day 13 (November 28, 2022) of the Artemis I mission, the Orion spacecraft reached its maximum distance from its home world. Over 430,000 kilometers from Earth in a distant retrograde orbit, Orion surpassed the record for most distant spacecraft designed to carry humans....
City lights stretch across the United States like a string of holiday lights in this image taken from the International Space Station on Nov. 10, 2023. At far left, the lights of Chicago, Illinois, are outlined by Lake Michigan. At far right, the Dallas/Fort Worth metropolitan area shines through the clouds while the sun’s first rays start to light up Earth’...