Inria director of research Bruno Lévy is an active participant in an international cosmological research project, working alongside researchers from the Paris Astrophysics Institute and universities overseas. The aim of this project is to develop algorithms capable of retracing the history of the universe and to create models capable of factoring in multiple unknowns such as dark matter and dark energy.
Inria director of research Bruno Lévy is an active participant in an international cosmological research project, working alongside researchers from the Paris Astrophysics Institute and universities overseas. The aim of this project is to develop algorithms capable of retracing the history of the universe and to create models capable of factoring in multiple unknowns such as dark matter and dark energy.
Bruno Lévy, Director of the Inria Nancy - Grand Est Centre, Roya Mohayaee, CNRS researcher at the Paris Institute of Astrophysics (Sorbonne University - CNRS) and Sebastian von Hausegger, researcher at the University of Oxford, have recently published a noteworthy article in Physical Review Letters. Their work - at the crossroads between mathematics, computer science and cosmology - focuses on a new mathematical method for turning back time using a three-dimensional map of the cosmos. Roya Mohayaee and Bruno Lévy explain the specifics.
Is the Universe Different In Different Directions? 29/04/2021
An artist’s impression of how ULAS J1120+0641, a very distant quasar powered by a black hole with a mass two billion times that of the Sun, may have looked. Credit: ESO/M. Kornmesser, CC BY 4.0
Bengaluru: For over a century, cosmologists have assumed that the universe is homogenous and appears the same in all directions. But in the last few years, many physicists and astronomers have challenged this so-called
cosmological principle.
A group of scientists from the US, the UK, France and India have gathered more evidence that suggests the universe isn’t in fact the same in all directions.