We have long speculated how life arose on #Earth 3.5 billion years ago. It’s possible that some elements didn’t form here at all, instead arriving from space by comet. The #ALMA telescope and #Rosetta probe shed new light on interstellar phosphorous.‬ . . Photo description: ALMA view of the star-forming region AFGL 5142. Photo credit: ALMA (ESO/NAOJ/NRAO), Rivilla et al. Article: bit.ly/2FWWBgU