Recent observations create a puzzle for astrophysicists: since the big bang, less galaxy clusters have formed over time than was actually expected. Physicists from the university of Bonn have now confirmed this phenomenon. For the next three years, the researchers will analyze their data in even greater detail. This will put them in a position to confirm whether the theories considered valid today need to be reworked. The study is part of a series of 20 publications which appear in the professional journal «Astronomy and Astrophysics».
An experiment to estimate when stars began to form in the Universe suggests that gas temperatures just before stars appeared had fallen well below predicted limits, and that dark matter is not as shadowy as was thought._ Nature 555, 38-39 (2018)
A team of astronomers, including two from MIT, has detected the most distant supermassive black hole ever observed. The black hole sits in the center of an ultrabright quasar, the light of which was emitted just 690 million years after the Big Bang. That light has taken about 13 billion years to reach us — a span of time that is nearly equal to the age of the universe._MIT
New work from a research team including the director of Carnegie’s Las Campanas Observatory, Leopoldo Infante, has tripled the sample size of known galaxies that can teach scientists about a key period in the universe’s history, when the lights came back on after the so-called dark ages.
Indian astrophysicists identify mega-structure of galaxies 4 billion light-years away – several scholars and faculty of Indian Universities involved_ University Centre for Astronomy & Astrophysics (IUCAA)
Using the DiRAC supercomputers at Universities of Cambridge, Leicester and Durham, researchers at the Institute of Astronomy and Kavli Institute for Cosmology, Cambridge simulated the growth of a galaxy containing a quasar similar to those we observe. _KICC