The event was first detected with the Zwicky Transient Facility. It had been ten years since such an event had been observed, and it is the first time that it has been observed in the optical regime. OKC-affiliated researchers Ana Sagués-Carracedo, Steve Schulze, Jesper Sollerman, Mattia Bulla and Erik Kool are co-authors on the Nature paper. Janet Chen, Sheng Yang, Sean Brennan and Steve Schulze contributed to the Nature Astronomy paper. Learn more about their work in this news article.