Five galaxies observed by JWST show signs of having high-temperature, low-metallicity gas and intense star formation, and new techniques used to analyze the data may reduce systematic errors.
Radio observations of carbon dioxide allow researchers to trace the distribution of ice in a galaxy with robust star formation, finding that ice is likely sublimated efficiently in this galaxy due to shocks.
New observations find no sign of helium in a much-studied exoplanet’s atmosphere; the presence of helium may have indicated that the planet’s atmosphere was being blown away.
Researchers have observed and characterized the largest collection of “dipper” stars — those that dim by 10–50% — finding that these stars’ spectral signatures hint at the presence of surrounding disk material.
Researchers calculated the ability of various solar system objects to gravitationally bend light from distant objects, which will be necessary to know before conducting high-precision astrometry.
Type Ia supernovae aren’t always the result of a white dwarf accreting material from a stellar companion, and the huge ejecta mass of a recent explosion suggests a merger of two white dwarfs instead.