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A stripped-envelope supernova, SN 2022jli, shows 12.4-day periodic undulations during the declining light curve, and narrow Hα emission is detected in late-time spectra with concordant periodic velocity shifts.

Simultaneous polarimetry measurements in the optical and radio bands for the afterglow emission of GRB 191221B provide insights into particle acceleration and total energy budget of gamma-ray bursts.

A possible kilonova associated with a nearby, long-duration gamma-ray burst suggests that gamma-ray bursts with long and complex light curves can be spawned from the merger of two compact objects, contrary to the established gamma-ray burst paradigm.

Galaxies that formed during the first few hundred million years after the Big Bang have physical properties that deviate from later galaxies, due to substantial gas infall from the intergalactic medium that dilutes the observed chemical enrichment.

GRB 060505 and GRB 060614 were not accompanied by supernova emission down to limits hundreds of times fainter than the archetypal SN 1998bw that accompanied GRB 980425, and fainter than any type Ic supernova ever observed.

Observations from the JWST of the second brightest GRB ever detected, GRB 230307A, indicate that it belongs to the class of long-duration GRBs resulting from compact object mergers, with the decay of lanthanides powering the longlasting optical and infrared emission.

Reanalysis of the spectra associated with the merger of two neutron stars identifies strontium, spectroscopically establishing the origin of the heavy elements created by rapid neutron capture and proving that neutron stars comprise neutron-rich matter.

This paper presents evidence for dynamical interactions in the very dense regions in the core of galaxies causing two compact objects, such as neutron stars and black holes, to merge, leading to a gamma-ray burst.

A new class of ultra-long-duration γ-ray bursts (GRBs) has recently been suggested, with durations in excess of 10,000 seconds, and now a supernova (SN 2011kl) has been found to be associated with the ultra-long-duration GRB 111209A, allowing a physical understanding of the nature of ultra-long-duration GRBs.