It's still possible to detect the site of the 2017 kilonova explosion

It’s been over a thousand days since the historic kilonova observation, and yet the region continues to emit X-rays, long after models predicted they should have faded away. What’s going on? August 2017 was a pretty momentous month in astronomy. The gravitational wave detectors LIGO and VIRGO spotted the unique signature of two colliding neutron …