NASA的哈勃太空望远镜发现黑洞光束促进恒星喷发
在一个意外的发现中，天文学家使用NASA的哈勃太空望远镜发现，一个巨大星系核心的超大质量黑洞喷射出的类似喷火器的喷流似乎会引发沿其轨迹的恒星喷发。这些恒星称为新星（novae），它们并没有被喷流卷入，但显然处于附近的危险区域。
NASA的哈勃和钱德拉发现一对超大质量黑洞
就像两位相扑选手对峙一样，我们观测到了距离最近的一对超大质量黑洞。这两个黑洞相距约300光年，是通过NASA的哈勃太空望远镜和钱德拉X射线天文台探测到的。这些黑洞深埋在一对正在碰撞的星系中，由内落的气体和尘埃提供燃料，使其作为活跃星系核（AGN）发出明亮的光芒。
哈勃影像: 星系NGC 1546
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哈勃望远镜观测小哑铃星云庆祝34周年
4月24日，为了庆祝NASA传奇的哈勃太空望远镜发射34周年，天文学家拍摄了位于3,400光年外北天拱极星座英仙座的小哑铃星云（也称为梅西耶76、M76或NGC 650/651）的快照。这个上镜的星云是业余天文学家最喜欢的目标。
NASA哈勃望远镜对年轻恒星为期三年的研究进入了新的篇章
这是哈勃太空望远镜有史以来执行的最大、最雄心勃勃的的项目之一，一个由科学家和工程师组成的团队在三年时间里收集了近500颗恒星的信息。这项工作为恒星的形成、演化及其对周围环境的影响提供了新的见解。
M1: 不断扩张的蟹状星云
2023年11月15日 M1: The Incredible Expanding Crab Image Credit: NASA, ESA, CSA, STScI; Jeff Hester (ASU), Allison Loll (ASU), Tea Temim (Princeton University) Explanation: Cataloged as M1, the Crab Nebula is the first on Charles Messier’s famous list of things which are not comets. In fact, the Crab Nebula is now known to be a supernova remnant, an expanding cloud of debris from the death explosion of a massive star. The violent birth of the Crab was witnessed by astronomers in the year 1054. Roughly 10 light-years across, the nebula is still expanding at a rate of about 1,500 kilometers per second. You can see the expansion by comparing these sharp images from the Hubble Space Telescope and James Webb Space Telescope. The Crab’s dynamic, fragmented…
NASA的詹姆斯·韦伯太空望远镜和哈勃太空望远镜联手创造了最丰富多彩的宇宙视图
NASA的詹姆斯·韦伯太空望远镜和哈勃太空望远镜联合起来研究一个被称为MACS0416的膨胀星系团。由此产生的全色图像结合了可见光和红外光，组合成有史以来最全面的宇宙视图之一。MACS0416距离地球约43亿光年，是一对相互碰撞的星系团，它们最终将合并成一个更大的星系团。
哈勃望远镜发现嵌入银河系内部的闪光球状星团
This colorful image of the globular star cluster Terzan 12 is a spectacular example of how dust in space affects starlight coming from background objects. A globular star cluster is a conglomeration of stars, arranged in a spheroidal shape. Stars in globular clusters are bound together by gravity, with a higher concentration of stars towards the center. The Milky Way has about 150 ancient globular clusters at its outskirts. These clusters orbit around the galactic center, but far above and below the pancake-flat plane of our galaxy, like bees buzzing around a hive. The location of this globular cluster, deep in the Milky Way in the constellation Sagittarius, means that it is shrouded in gas and dust which absorb and alter the starlight emanating from…
哈勃看到一个闪亮的临近星系
The galaxy ESO 300-16 looms over this image from the NASA/ESA Hubble Space Telescope. This galaxy, which lies 28.7 million light-years from Earth in the constellation Eridanus, is a ghostly assemblage of stars which resembles a sparkling cloud. Other distant galaxies and foreground stars complete this astronomical portrait, which was captured by the Advanced Camera for Surveys. This observation is one of a series which aims to get to know our galactic neighbors. Hubble has observed around three quarters of known galaxies within about 10 megaparsecs of Earth in enough detail to resolve their brightest stars and establish distances to these galaxies. A team of astronomers proposed using small gaps in Hubble’s observing schedule to acquaint ourselves with the remaining quarter of these nearby galaxies….
海王星消失的云层与太阳周期有关
天文学家们发现了海王星云层的增减变化与11年太阳活动周期之间的联系。太阳交织磁场的增强和减弱驱动着太阳活动。