.and what's new upon the BBC site, then?...well, a hop, skip and a jump through the following....go figure:

https://www.bbc.co.uk/news/science-environment-47788451

methane on mars, anybody?

https://www.bbc.co.uk/news/science-environment-30456664

https://en.wikipedia.org/wiki/Chlorobenzene

"In 2015, the SAM science team announced that the Curiosity rover reported evidence of higher concentrations of chlorobenzene in a sedimentary rock, named "Cumberland", on Mars.^[9] The team speculated that the chlorobenzene might have been produced when the sample was heated in the instrument sampling chamber. The heating would have triggered a reaction of organics in the Martian soil, which is known to contain perchlorate"

https://en.wikipedia.org/wiki/Catechol

https://en.wikipedia.org/wiki/Catechu