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" ... The first one, in 2017, produced a light-signal as a counterpart: gamma rays, X-rays, and lower-energy afterglows across the electromagnetic spectrum. The second one, however, produced no light at all, despite many follow-up observations being conducted. ... "
" ... There's still so much to learn about these classes of objects: whether their afterglows are radioactive, how massive their progenitors are, whether they come from single or multi-star systems, and how frequently they occur. With the Vera Rubin Observatory and James Webb Space Telescope both coming online soon, we'll be able to detect, classify, and spectroscopically measure these objects more than halfway to the edge of the observable Universe. We've just seen the tip of the iceberg, and later this decade, we'll truly find out what lies beneath the surface of our cosmic ocean. ... "