NASA的哈勃太空望远镜在地球附近寻找中等大小的黑洞
天文学家利用NASA的哈勃太空望远镜得出了他们所说的迄今为止最有力的证据，证明了一种罕见的“中等大小”黑洞的存在，这种黑洞可能潜伏在距离地球最近的球状星团的中心，距离地球6,000光年。
标签： 宇宙
猎户座的婴儿恒星
Scores of baby stars shrouded by dust are revealed in this infrared image of the star-forming region NGC 2174, as seen by NASA’s Spitzer Space Telescope. Some of the clouds in the region resemble the face of a monkey in visible-light images, hence the nebula’s nickname: the “Monkey Head.” However, in infrared images such as this, the monkey...
哈勃太空望远镜观测到一个闪烁的星团
The densely packed globular cluster NGC 6325 glistens in this image from the NASA/ESA Hubble Space Telescope. This concentrated group of stars lies around 26,000 light-years from Earth in the constellation Ophiuchus. Globular clusters like NGC 6325 are tightly bound collections of stars with anywhere from tens of thousands to millions of members. They can be...
聆听和观看天体的音乐
Maestro Piotr Gajewski conducts the National Philharmonic in the world premiere performance of Henry Dehlinger’s “Cosmic Cycles,” in this photo from Thursday, May 11, 2023, as an enhanced color image of Jupiter is displayed above. “Cosmic Cycles: A Space Symphony” is a collaboration between composer Henry Dehlinger, NASA’s Goddard Space Flight Center, and th...
NASA的詹姆斯·韦伯太空望远镜近距离观察神秘星球
一个科学团队对“迷你海王星”的大气层有了新的了解，这是星系中常见的一类行星，但我们对它知之甚少。
在钱德拉的图像中，“H”代表炽热和巨大
在梅西耶84星系（M84）的热气中有一个“H”形结构。来自银河系中心超大质量黑洞的喷流在高温下产生了相反方向的空洞。NASA钱德拉X射线天文台的X射线数据（以粉红色显示）与VLA的无线电数据（以蓝色显示）相结合，显示了这一点。
哈勃太空望远镜拍摄到异常明亮的相互作用星系
This new image from NASA’s Hubble Space Telescope shows interacting galaxies known as AM 1214-255. These galaxies contain active galactic nuclei, or AGNs. An AGN is an extraordinarily luminous central region of a galaxy. Its extreme brightness is caused by matter whirling into a supermassive black hole at the galaxy’s heart. Hubble observed the galaxy closes...
中子星碰撞
Two neutron stars begin to merge in this illustration, blasting a jet of high-speed particles and producing a cloud of debris. These gamma-ray bursts (GRBs) are the most powerful events in the universe. Scientists think these kinds of events are factories for a significant portion of the universe’s heavy elements, including gold. They based their estimates o...
哈勃太空望远镜拍摄到一个难以捉摸的星系团
A menagerie of interesting astronomical finds are visible in this image from the NASA/ESA Hubble Space Telescope. In addition to several large elliptical galaxies, a ring-shaped galaxy is lurking on the right of the image. A pair of bright stars are also visible at the left of the image, notable for their colorful crisscrossing diffraction spikes. This colle...
詹姆斯·韦伯太空望远镜揭示了巨大星团的早期宇宙前传
NASA的詹姆斯·韦伯太空望远镜已经开始揭示宇宙历史上迄今为止遥不可及的形成时期：星系的形成和聚集。天文学家称之为红移7.9的距离，即大爆炸后仅6.5亿年，首次证实了由七个星系组成的原星团。