• 费米望远镜首次在外星系发现伽马射线

    15-11-18 Researchers using NASA's Fermi Gamma-ray Space Telescope have discovered the first gamma-ray pulsar in a galaxy other than our own. The object sets a new record for the most luminous gamma-ray pulsar known. The pulsar lies in the outskirts of the Ta...

  • 银河系中心的古老恒星包含早期宇宙的“指纹”

    15-11-13 An international team of astronomers, led researchers from the University of Cambridge and the Australian National University, have identified some of the oldest stars in our galaxy, which could contain vital clues about the early Universe, includin...

  • 矮星系如何成为星团的摇篮

    15-09-10 A nearby dwarf galaxy poses an intriguing mystery: How is it able to form brilliant star clusters without the dusty, gas-rich environments found in larger galaxies? The answer, astronomers believe, lies in densely packed and previously unrecognized...

  • 迄今最遥远的星系EGS8p7

    15-09-07 A team of Caltech researchers that has spent years searching for the earliest objects in the universe now reports the detection of what may be the most distant galaxy ever found. In an article published August 28, 2015 in Astrophysical Journal Lette...

  • 恒星核合成的全新诠释

    15-08-04 Physicists at the University of York have revealed a new understanding of nucleosynthesis in stars, providing insight into the role massive stars play in the evolution of the Milky Way and the origins of the Solar System. Radioactive aluminium (alum...

  • 银河系体积仍在不断膨胀

    15-06-29 Astronomers expect that galaxies grow by swallowing smaller galaxies. But the evidence is usually not easy to see -- just as the remains of the water thrown from a glass into a pond will quickly merge with the pond water, the stars in the infalling...

  • 后发星系团内发现854个超暗星系

    15-06-24 A group of researchers from the Stony Brook University (the State University of New York) and the National Astronomical Observatory of Japan has discovered 854 ultra dark galaxies in the Coma Cluster by analyzing archival data from the Subaru Telesc...

  • 银河系可能比之前的估计值大

    15-03-13 The Milky Way galaxy is at least 50 percent larger than is commonly estimated, according to new findings that reveal that the galactic disk is contoured into several concentric ripples. The research, conducted by an international team led by Renssel...

  • 大质量星系能吞食附近小星系增加质量

    14-09-20 Massive galaxies in the Universe have stopped making their own stars and are instead snacking on nearby galaxies, according to research by Australian scientists. Astronomers looked at more than 22,000 galaxies and found that while smaller galaxies a...

  • 含有超重黑洞的已知最小星系

    14-09-20 A University of Utah astronomer and his colleagues discovered that an ultracompact dwarf galaxy harbors a supermassive black hole -- the smallest galaxy known to contain such a massive light-sucking object. The finding suggests huge black holes may...