Long-term observations of the pulsar PSR B1310+18A reveal it to be 700–850 million years old, with a helium white dwarf companion weighing 0.39 solar mass.

Observations of a supernova taken 18 and 22 years after the explosion was initially detected suggest that the supernova’s forward shock has broken through any circumstellar shell or torus that was present.

A collapsing star can evolve into a black hole while still generating a supernova, and simulations have explored the energies of these explosions and the ejecta they spread through the interstellar medium.

A survey of massive stars in the Small Magellanic Cloud, one of the Milky Way’s satellite galaxies, suggests that the small galaxy is being tidally stretched by another satellite, the Large Magellanic Cloud.

Researchers confirm that gadolinium contributes to a feature seen in the spectrum of AT2017gfo, helping to advance our understanding of nucleosynthesis in the aftermath of neutron star mergers.

Introducing nonzero initial orbital eccentricities into simulations brings the predictions of the eccentric Kozai–Lidov mechanism into alignment with observations.