Composite image of a star-forming region (left) and Comet 67P (right). Credit: NASA/ESA/CSA/M. Zamani (ESA/Webb); ESA/Rosetta/NAVCAM; K. Slavicinska. For years, astronomers and astrochemists have ...

Get Instant Summarized Text (Gist) Sulfur in the universe, previously thought to be missing, may be trapped in ammonium hydrosulfide salt on cosmic dust and pebbles. Laboratory experiments under ...

This depletion may be due to sulfur freezing onto interstellar dust grains, but the observed levels of sulfur-bearing ices are insufficient to explain the missing sulfur. For two decades, researchers ...