This NASA/ESA Hubble Space Telescope image features the galaxy LRG-3-817, also known as SDSS J090122.37+181432.3. The galaxy, its image distorted by the effects of gravitational lensing, appears as a long arc to the left of the central galaxy cluster. Gravitational lensing occurs when a large distri […]
The galaxy UGCA 193, seen here by the NASA/ESA Hubble Space Telescope, is a galaxy in the constellation of Sextans (the Sextant). Looking rather like a waterfall, UGCA 193 appears to host many young stars, especially in the lower portion of this view, creating a striking blue haze and the sense that
如果没有恒星，宇宙将是一个非常无聊的地方。如果没有它们，宇宙将仍然是一个来自大爆炸的氢和氦的弥散等离子体。 作为宇宙的基本组成部分，恒星核聚变炉锻造出新的重元素，丰富它们的母体星系。来自恒星的辐射能可能在最适宜的行星上孕育生命，就像在地球上一样。 为了更好地了解恒星和恒星演化，位于马里兰州巴尔的摩的太空望远镜科学研究所(STScI)与美国宇航局的哈勃太空望远镜启动了一项雄心勃勃的新计划，名为ULLYSES(UV Legacy Library of Young star，作为基本标准的年轻恒星紫外线遗产库)。 这是大麦哲伦星云（LMC）的地面望远镜照片，该星云是我们银河系的卫星星系。该星系是美国
2020年10月25日 Dark Matter in a Simulated Universe Illustration Credit & Copyright: Tom Abel & Ralf Kaehler (KIPAC, SLAC), AMNH Explanation: Is our universe haunted? It might look that way on this dark matter map. The gravity of unseen dark matter is the leading explanation for why galaxies r
In this spectacular image captured by the NASA/ESA Hubble Space Telescope, the galaxy NGC 2799 (on the left) is seemingly being pulled into the center of the galaxy NGC 2798 (on the right). Interacting galaxies, such as these, are so named because of the influence they have on each other, which may
This image, taken with the NASA/ESA Hubble Space Telescope, depicts a special class of star-forming nursery known as Free-floating Evaporating Gaseous Globules, or frEGGs for short. This object is formally known as J025157.5+600606. When a massive new star starts to shine while still within the cool
熟悉的恒星闪耀，星云发光，附近的星系令人垂涎，这是由美国宇航局（NASA）的凌日系外行星调查卫星（TESS）拍摄的208张照片拼凑而成的一幅新的北方天空全景图。在为期两年的观测中，这个行星猎人拍摄了大约75%的天空，而且仍在继续。 NASA的TESS花了近一年的时间，对北部天空进行成像，以寻找我们太阳系以外的世界。游览此全景图，看看TESS迄今为止发现了什么。 影像来源：NASA戈达德太空飞行中心 TESS已经发现了74颗系外行星，也就是太阳系之外的世界。天文学家正在筛选大约1200个额外的系外行星候选行星，那里可能有新的行星等待确认。在北部的天空中有600多个这样的候选天体。 TESS通过在
This stunning image by the NASA/ESA Hubble Space Telescope features the spiral galaxy NGC 5643 in the constellation of Lupus (the Wolf). Looking this good isn’t easy; 30 different exposures, for a total of nine hours of observation time, together with the high resolution and clarity of Hubble, were
Resting on the tail of the Great Bear in the constellation of Ursa Major lies NGC 5585, a spiral galaxy that is more than it appears. The many stars and clouds of dust and gas that make up NGC 5585, shown here in this Hubble image, contribute only a small fraction of the total mass of the galaxy. As
Humanity has “eyes” that can detect all different types of light through telescopes around the globe and a fleet of observatories in space. From radio waves to gamma rays, this “multiwavelength” approach to astronomy is crucial to getting a complete understanding of objects i
