The death of massive stars has traditionally been discovered by explosive events in the gamma-ray band. Liu et al. show that the sensitive wide-field monitor on board Einstein Probe can reveal a weak soft-X-ray signal much earlier than gamma rays.

Coherent radio emission with a long (nearly 6.5 h) period has been detected from both magnetic poles of a rotating compact object, offering insights into the evolution and emission mechanism of compact radio transients.

Using JWST, more than 40 individual stars have been detected in a distant galaxy, dating back to when the Universe was only half of its current age. The stars appear to be red (super)giants that are magnified by factors of hundreds.

Thirty years of Hubble data reveal transient UV-dark ovals more frequently in the south. Momentum from the magnetosphere penetrates downwards to concentrate and shift the haze distribution within the ovals.

Deep X-ray limits are placed on the source of the closest fast radio burst, FRB 20200120E, ruling out an ultraluminous X-ray source or a young extragalactic pulsar embedded in a Crab-like nebula as its origen.

Analysis of the stellar population properties of 30 host galaxies of fast radio bursts (FRBs) suggests an abundance of FRBs in massive star-forming galaxies, and implies that the formation of FRB sources—magnetars—is linked to core-collapse supernovae of stellar merger remnants.

These two types of compact objects share several similarities, despite their different compositions. A short workshop in Spain brought communities together to share understanding of dense matter under extreme conditions.

Periodic sub-structure in radio emission from magnetars provides an observational link not only between magnetars and fast radio bursts, but across all classes of radio-emitting rotating neutron stars. The correlation between sub-structure periodicity and neutron-star rotational period can be used to determine an underlying period for fast radio bursts.

Theories predict that core asphericity must be involved in core-collapse supernova explosions; however, the shape of these explosions has not been directly observed. The distribution of the explosive burning ash has now been revealed using nebular spectroscopy, indicating that a collimated structure is common in many stellar explosions.

Fast radio bursts, arriving at Earth from distant galaxies, usually have durations of a few milliseconds or more. Now, data on a source of repeating fast radio bursts have been revisited, with much higher time resolution than before, and burst signals are seen that last only a few microseconds — showing that the properties of fast radio bursts are more diverse than previously thought.