Science February 16, 2021
Supercomputer Turns Back Cosmic Clock
Astronomers have tested a method for reconstructing the state of the early Universe by applying it to 4000 simulated universes using the ATERUI II supercomputer at NAOJ. They found that together with new observations the method can set better constraints on inflation.
Science January 26, 2021
When galaxies collide—Models suggest galactic collisions can starve massive black holes
It was previously thought that collisions between galaxies would necessarily add to the activity of the massive black holes at their centers. However, researchers have performed the most accurate simulations of a range of collision scenarios and have found that some collisions can reduce the activity of their central black holes.