Next up, we’ve got Kiersten Boley on the first evidence of the metallicity cliff in the formation of super-Earths.
The first stars were metal poor, so there were not enough metals to form planets via core accretion. So the question comes up: when did we start forming planets?
Already back in 1996, after finding 4 planets, people started doing statistics ;) in particular looking at how metallicity links to #planet#formation.