哈勃太空望远镜观测到一个闪烁的星团

哈勃太空望远镜观测到一个闪烁的星团

ByNASA中文

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 found in all types of galaxies and act as natural laboratories for astronomers studying star formation. This is because the constituent stars of globular clusters tend to form at roughly the same time and with similar initial composition, meaning astronomers can use them to fine-tune their theories of how stars evolve. Astronomers inspected this particular cluster not to understand star formation, but to search for a hidden monster. Though…

聆听和观看天体的音乐

聆听和观看天体的音乐

ByNASA中文

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 the National Philharmonic that features a fusion of music and video in seven multimedia works on the Sun, Earth, Moon, Planets, and Cosmos. Image Credit: NASA/Joel Kowsky Experience our universe in a new way. 在这张拍摄于2023年5月11日（周四）的照片中，大师彼得·加耶夫斯基指挥国家爱乐乐团进行了亨利·德林格的《宇宙循环》的全球首演，木星的增强彩色图像显示在上方。《宇宙循环：太空交响曲》是作曲家亨利·德林格、NASA戈达德太空飞行中心和国家爱乐乐团之间的合作，融合了音乐和视频，创作了七部关于太阳、地球、月球、行星和宇宙的多媒体作品。 影像来源：NASA/Joel Kowsky 以全新的方式体验我们的宇宙。

哈勃太空望远镜拍摄到异常明亮的相互作用星系

哈勃太空望远镜拍摄到异常明亮的相互作用星系

ByNASA中文

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 closest to the center as part of an AGN survey, with the aim of compiling a dataset about nearby AGNs to be used as a resource for astronomers investigating AGN physics, black holes, host galaxy structure, and more. Image Credit: NASA, ESA, A. Barth (University of California – Irvine), and J. Dalcanton (University of Washington); Processing: Gladys Kober (NASA/Catholic University of America) 这张来自NASA哈勃太空望远镜的新图像显示了相互作用的星系，称为AM 1214-255。这些星系包含活动星系核（AGN）。AGN是星系中非常明亮的中心区域。它的极端亮度是由物质旋转进入星系中心的超大质量黑洞造成。 作为AGN调查的一部分，哈勃观察了最靠近中心的星系，目的是汇编一个关于附近AGN的数据集，作为天文学家研究AGN物理学、黑洞、宿主星系结构等的资源。 影像来源：NASA, ESA, A. Barth (University…

中子星碰撞

中子星碰撞

ByNASA中文

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 on the rate of short burst GRBs thought to occur across the cosmos, but a Dec. 11, 2021, discovery showed they’ll need to factor long bursts into their calculations as well. For the last few decades, astronomers have generally divided GRBs into two categories. Long bursts emit gamma rays for two seconds or more and originate from the formation of dense objects like black holes in the centers of…

哈勃太空望远镜拍摄到一个难以捉摸的星系团

哈勃太空望远镜拍摄到一个难以捉摸的星系团

ByNASA中文

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 collection of astronomical curiosities is the galaxy cluster ACO S520, located in the constellation Pictor and captured by Hubble’s Advanced Camera for Surveys. ACO S520 represents one of a series of Hubble observations searching for massive, luminous galaxy clusters that had not been captured by earlier surveys. Astronomers took advantage of occasional gaps in Hubble’s busy schedule to capture images of these barely explored galaxy clusters, revealing a…