A blue oval is shown with a red and yellow horizontal band running across the middle. Red and yellow spots also appear distributed inside the oval. Please see the explanation for more detailed information.
图中显示的是一个蓝色椭圆形，中间有一条红色和黄色的水平带。椭圆形内部还分布着红色和黄色的斑点。有关更多详细信息，请参阅说明。
A large and orange-tinted moon is pictured rising beyond the pillars of an ancient structure. The foreground is dark and the night sky behind the Moon appear blue. Please see the explanation for more detailed information.
照片中，一轮巨大的橙色月亮从古老建筑的柱子上方升起。前景很暗，月亮后面的夜空呈蓝色。有关更多详细信息，请参阅说明。
2022年10月，天文学家迅速被称为BOAT的有史以来最亮的伽马射线暴（GRB）震惊了。现在，一个国际科学团队报告称，来自NASA的费米伽马射线太空望远镜的数据显示出一个前所未见的特征。
2023年9月6日 HESS Telescopes Explore the High-Energy Sky Credit & Copyright: Video Credit & Copyright: Jeff Dai (TWAN), H.E.S.S. Collaboration; Music: Ibaotu catalog number 1044988 (Used with permission) Explanation: They may look like modern mechanical dinosaurs, but they are enormous swiveling eyes that watch the sky. The High Energy Stereoscopic System (H.E.S.S.) Observatory is composed of four 12-meter reflecting-mirror telescopes surrounding a larger telescope housing a 28-meter mirror. They are designed to detect strange flickers of blue light — Cherenkov radiation –emitted when charged particles move slightly faster than the speed of light in air. This light is emitted when a gamma ray from a distant source strikes a molecule in Earth’s atmosphere and starts a charged-particle shower. H.E.S.S. is sensitive to some of the highest…
