The dwarf satellite galaxies of the Milky Way are structures that are distributed around the galaxy in an anisotropic manner on a structure called Disk of Satellites (DoS). This structure does not match the predictions made by the cold dark matter cosmological model, which predicts a fully isotro...
Hawaii's Gemini North telescope, atop the towering volcano Mauna Kea, recently captured a brilliant view of the galaxies NGC 4568 and NGC 4567 before they collide. In the image, the spiraled objects are still largely unaffected as they draw closer to one another; their brilliant centers are ...
关于英语的问题是阅读Our Place in Space(太空)There are about ten hundred million(1,000,000,000) galaxies(银河系)in the universe(宇宙).We can see only a small part of out galaxy.This is the Milky Way(银河).There are about two hun
Milky WaygalaxiesSimple two-component (dark+bright) models are built up for the Milky Way, where both the density distribution and the rotation curve are deduced from known observations. The derived dark to bright mass ratio μ turns out to be in the range μ10, in close agreement with the...
Named after Hindu deities, the star streams appear to be the remnants of two galaxies that merged with an early version of the Milky Way between 12 billion and 13 billion years ago when the first galaxies were forming across the cosmos. The structures are so old that they...
In the shadow of hibernation, dreams sailing the Milky Way. In the shadow of shifting paths, an incandescent orbiting. In the shadow of bitter winds, the fullness of the Snow Moon. In the shadow of candlelight, spirits dancing like galaxies. ...
galaxies: evolutionLocal GroupThe most metal-poor stars in dwarf spheroidal galaxies (dSphs) can show the nucleosynthetic patterns of one or a few supernovae (SNe). These SNe could have zero metallicity, making metal-poor dSph stars the closest surviving links to Population III stars. Metal-...
ESO’s Very Large Telescope has captured an intriguing star-forming region in the Large Magellanic Cloud — one of theMilky Way’s satellite galaxies. This sharp image reveals two distinctive glowing clouds of gas: red-hued NGC 2014, and its blue neighbor NGC 2020. While they are very differ...
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