An international team of researchers has found for the first time that the connection between a galaxy cluster and surrounding dark matter is not characterised solely by the mass of clusters but also by their formation histor
A team of astronomers harnessing the combined power of NASA's Hubble and Spitzer space telescopes have found the faintest object ever (a galaxy) seen in the early universe. It existed about 400 million years after the Big Ban
Astronomers using data from NASA's Fermi Gamma-ray Space Telescope have detected hints of periodic changes in the brightness of a so-called "active" galaxy, whose emissions are powered by a supersized black hole.
A team of researchers has discovered distant galactic halos. A study of spiral galaxies seen edge-on has revealed that halos of cosmic rays and magnetic fields above and below the galaxies' disks are much more common than pre