Observations challenge cosmological theories

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».

New evidence for dark matter makes it even more exotic

Looking at massive galaxy clusters, EPFL astronomers have observed that their brightest galaxies within them “wobble” — an unexpected phenomenon in current models. The discovery, published in MNRAS, adds to the body of evidence of dark matter beyond the Standard Cosmological Model (ΛCDM). _EPFL

Artificial Intelligence Analyzes Gravitational Lenses 10 Million Times Faster

Ερευνητές από το Εθνικό Εργαστήριο Επιταχυντών SLAC και το Πανεπιστήμιο Stanford στις Η.Π.Α., επέδειξαν την δυνατότητα τεχνητών νευρωνικών δικτύων, τα οποία μιμούνται τα εγκεφαλικά, να φέρουν την επανάσταση στην μέθοδο ανάλυσης ιδιαίτερα πολύπλοκων δεδομένων, συμπεριλαμβανομένων των ακραίων χωροχρονικών παραμορφώσεων —καίριας σημασίας για την κατανόηση του σύμπαντος.


The sun is a clean and inexhaustible source of energy, with the potential to provide a sustainable answer to all future energy supply demands. There’s just one outstanding problem: the sun doesn’t always shine and its energy is hard to store. For the first time, researchers at the Paul Scherrer Institute PSI and the ETH Zurich have unveiled a chemical process that uses the sun’s thermal energy to convert carbon dioxide and water directly into high-energy fuels: a procedure developed on the basis of a new material combination of cerium oxide and rhodium. This discovery marks a significant step towards the chemical storage of solar energy. The researchers published their findings in the research journal Energy and Environmental Science ._ Paul Scherrer Institute (PSI) by Uta Deffke

World’s Most Powerful Digital Camera Sees Construction Green Light

The Department of Energy has approved the start of construction for a 3.2-gigapixel digital camera – the world’s largest – at the heart of the Large Synoptic Survey Telescope (LSST). Assembled at the DOE’s SLAC National Accelerator Laboratory, the camera will be the eye of LSST, revealing unprecedented details of the universe and helping unravel some of its greatest mysteries._SLAC

AMS results create cosmic ray puzzle

-Νέα δεδομένα από το πείραμα AMS-Alpha Magnetic Spectrometer, διαφωνούν με τα σημερινά μοντέλα που περιγράφουν την προέλευση και την κίνηση των σωματιδίων υψηλής ενέργειας τα οποία ονομάζονται κοσμικές ακτίνες.- Π.Δ.Λιβάς
-New results from the Alpha Magnetic Spectrometer experiment defy our current understanding of cosmic rays,
by Sarah Charley