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
