<authors> ... "have recreated pyrene, a hydrocarbon commonly formed during the combustion processes in car engines, in a lab"
Miracle of miracles. Researchers have created in a lab a molecule that is commonly created by cars. Whoa!
Come on, the story as written is full of logical holes. How about:
"A pressurised mixture of 4-phenanthrenyl - a hydrocarbon with one unpaired electron - another hydrocarbon compound acetylene were injected into a microreactor from a nozzle at supersonic speeds."
According to the title the article is about creating molecules in space where there is no pressure and where there are no reactors.
I am sure these apparent inconsistencies are because details about the research have been have been omitted and maybe it just shows it is possible to edit articles a little too far.