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Experiments using high-intensity X-ray pulses incident on high-pressure hydrocarbons suggest that diamond formation can occur at shallower depths in icy planets and may play a role in the internal convection that generates their magnetic fields.
Chemical abundances derived from infrared nebular lines reveal strongly depressed metallicities in interacting galaxies, suggesting that in luminous infrared galaxies chemical enrichment and stellar-mass growth take place through mergers, which drive these galaxies out of equilibrium.
Nuclear experiments become the latest ‘messenger’ to help with unravelling the mysteries of neutron stars. Combining information from astronomical observations and laboratory experiments reveals how nucleons interact in both nuclei and stars.
Researchers have detected the elusive dark matter component of cosmic filaments near the Coma galaxy cluster using gravitational lensing. This supports the idea that galaxy clusters grow at the intersection of cosmic filaments, shedding light on the structure of our universe.
A hyperactive fast radio burst source has been observed for thousands of hours using relatively small telescopes. The energy distribution of the brightest bursts detected suggests a possible link between repeating and apparently non-repeating burst sources.
The dark surface of Mercury can be explained by <1 wt% of microcrystalline graphite and similar amounts of Fe0. Low-reflectance materials may be secondary crust and carbon was not completely drained from the mantle during early differentiation.
When stars like our Sun die, they expel their outer layers in a dramatic stellar wind. This study of an unusual chemical signature in one particular stellar wind reveals that the signature is due to the presence of a binary system whose components had a close approach around 200 years ago.
