Chandra issued an image release on February 28, 2022 and a press release on March 2, 2022, "The Unfolding Story of Kilonova Told in X-rays”. NASA's Chandra X-ray Observatory continues to study GW170817, a neutron star merger that produced gravitational waves. Many telescopes saw different kinds of light after the discovery in August 2017, but only Chandra is still making a detection. Early Chandra data revealed the presence of a narrow jet that has slowed down and expanded over time. The latest study presents X-ray evidence for a shock — similar to a sonic boom from an airplane — in the aftermath of the merger. For more information visit:
https://www.nasa.gov/mission_pages/chandra/images/the-unfolding-story-of-a-kilonova-told-in-x-rays.html.
