X-ray observations are consistent with radiowave data reported last month by another team of scientists, who also indicated that it was continuing to brighten during the three months since the collision. During this same period, X-ray and optical observatories were unable to monitor GW170817/GRB because it was too close to the Sun at the time. However, once this period ended, Chandra was able to gather data again, which was consistent with these other observations. As John Ruan explained: “When the source emerged from that blind spot in the sky in early December, our Chandra team jumped at the chance to...