An article to be published in the journal “Monthly Notices of the Royal Astronomical Society” reports a study tracing the journey of phosphorus from star formation to comets. A team of researchers led by Víctor Rivilla of the Italian National Institute of Astrophysics used the ALMA radio telescope and data collected by ESA’s Rosetta space probe’s ROSINA instrument on comet 67P/Churyumov–Gerasimenko to understand where phosphorus is formed and how comets may have brought it to Earth, where it’s needed by life forms.