Dark matter is the mysterious substance that makes up roughly a quarter of the Universe. There is strong indirect evidence for its existence from measurements...
Using high-resolution spectroscopic observations from the High-Resolution Echelle Spectrometer (HIRES) on the 10-m Keck I telescope at the W. M. Keck Observatory,...
An international team of astronomers has discovered a massive cloud of gas that formed just 850 million years after the Big Bang. The chemical composition...
The current model of the Universe needs to be revised, according to a new analysis of Cosmic Microwave Background (CMB) anisotropy data.
This artist’s...
Using data from the large scale structure of galaxies, the Cosmic Microwave Background (CMB), Type Ia supernovae, and Big Bang nucleosynthesis, a team...
Dark matter, the mysterious substance that makes up roughly a quarter of the Universe, may have its origin in pre-Big-Bang times, according to a new paper...
New data from Spitzer and Hubble space telescopes show that in a few specific wavelengths of infrared light, some of the first galaxies to form in the...
Professor Avi Loeb of the Harvard-Smithsonian Center for Astrophysics and colleagues have proposed a new test for inflation, the theory that our Universe...
Measurements of today’s expansion rate do not match the rate that was expected based on how the Universe appeared shortly after the Big Bang over 13...
When the Universe was still very young, only a few kinds of atoms existed. Astrophysicists believe that around 100,000 years after the Big Bang, ionized...
According to a Swinburne University of Technology-led study, the newly-discovered relic cloud of gas is unpolluted by stars even 1.5 billion years after...
Physicists from the PHENIX Collaboration have created droplets of a liquid-like state of matter called quark-gluon plasma, forming three distinct shapes...
Physicists from the ALICE (A Large Ion Collider Experiment) Collaboration at CERN have gained new insights into the properties of the quark-gluon plasma,...
Ordinary (baryonic) matter make up all physical objects in existence, from stars to the cores of black holes. But until now, scientists had only been able...
A duo of astrophysicists is proposing a new model for the invisible material that makes up most of the Universe: it’s possible that a small fraction...
An international team of astronomers has used observations from ESO’s Very Large Telescope (VLT) and the Atacama Large Millimeter/submillimeter Array...
Professor Stephen Hawking’s theory about the Big Bang, which he worked on in collaboration with Katholieke Universiteit Leuven’s Professor Thomas Hertog,...
A team of Canadian physicists has developed a new way to improve our knowledge of the Big Bang by measuring radiation from its afterglow, called the cosmic...
Astronomers using the NASA/ESA Hubble Space Telescope have for the first time precisely measured the distance to one of the oldest objects in the Universe...
