Fundamental Research Division
The DRF at the CEA assemble approximately 6,000 scientists since January 2016.
Scientific result | Galaxies
In a little over 13 billion years, the Milky Way has traveled more than thirty million light years, gradually moving away from the Local Void (a less dense region that is emptying itself to the benefit of its massive surrounding structures). The fate of our galaxy is forevermore linked to that of its neighbor, the spiral galaxy Andromeda. Gravity should prevail over the expansion of the universe, with a collision of the two galaxies predicted in 4.5 million years.
Our galaxy, like Andromeda, will escape the region's main gravitational attractor, located in the Virgo constellation. On the other hand, all galaxies currently less than forty million light years away will be captured.
For the first time, the trajectories of 1,400 "nearby" galaxies have been reconstructed back to their origin thirteen billion years ago. This visualization is presented in an interactive format.
This work was conducted in collaboration with the University of Maryland, the University of Hawaii, the Hebrew University of Jerusalem, and the Irfu.
CEA is a French government-funded technological research organisation in four main areas: low-carbon energies, defense and security, information technologies and health technologies. A prominent player in the European Research Area, it is involved in setting up collaborative projects with many partners around the world.