An international team of astronomers has determined for the first time the amount of dark matter that was needed in the origins of the Universe for the formation of galaxies like the Milky Way: around three hundred billion times the mass of the Sun.
The BigBoss project will use 500 nights of observation in the Mayall telescope, of the National Optical Astronomy Observatory of Arizona (USA) with the aim of elaborating the most detailed map of the sky and investigating the history of the expansion of the universe and of dark energy .
Researchers at the University of California in Santa Cruz (United States) have detected a galaxy with a redshift of approximately 10, which corresponds to a time when the Universe was about 500 million years old.
A study at the University of Provence in Marseille (France), which has used the measurement of the geometry of distant pairs of galaxies, confirms that the Universe is flat and indicates that dark energy is probably Einstein's cosmological constant. The results of the work are published in the journal 'Nature'.
In an experiment to collide lead nuclei at CERN's Large Hadron Collider (LHC), a team of physicists discovered that the early Universe was not only extremely hot and dense, but had the consistency of a liquid.
The Planck space telescope of the European Space Agency (ESA) has published the most complete map of the Universe to date known, an image of the entire celestial vault that provides new evidence on the process of formation of stars and galaxies and allows the study of the former phases of formation of the cosmos.
Astronomers have found what appear to be two of the earliest and most primitive known supermassive black holes. The discovery, based largely on observations from NASA's Spitzer Space Telescope, will provide a better understanding of the origins of the Universe.
The discovery of a star that could be as old as the Universe supports the theory that the Milky Way "devoured" other smaller galaxies to its current size, according to a study led by the Harvard-Smithsonian Center for Astrophysics in Cambridge ( USA).
Danni Büchner is invited to Sam Dylan's Halloween party. But the "Goodbye Germany" emigrant has no desire for many other party guests. And find clear words.
