Tomohiro Harada

Scientists have discovered that in the expanding universe, primordial black holes are born rhythmically: their mass grows not smoothly, but in jumps, forming a repeating pattern. Previously, this behavior was only observed in models without expansion. The discovery suggests that the mass distributio

In the early Universe, black holes sprang directly from clumps of dark matter. But collapse only kicked in where the matter formed broad, gently sloping hills, not sharp peaks. These primordial holes became the seeds of the giants at the centers of galaxies — allowing them to grow huge in a short ti