Baby Black Hole Booted Across Space: First-Ever Measurement of a Cosmic “Natal Kick”
A Cosmic Kick: Newborn Black Hole Sent Careening Through Space On April 12, 2019, two black holes collided 2.4 billion light-years away – an event detected as gravitational-wave signal GW190412. What happened next was extraordinary: the newly merged black hole was launched across space by a “natal kick,” like a cosmic cannonball. Now in 2025, scientists have measured the speed and direction of this recoiling black hole for the first time ever livescience.com igfae.usc.es. The remnant black hole blasted off at over 50 kilometers per second (about 180,000 km/h), likely fast enough to escape the cluster of stars it came
