Those are narrow, dark - toned streaks that go down steep Martian slopes, which could be water tracks of salty brines, and potentially home to Martian life. (scientificamerican.com)
But it wasn't until last year, after detecting salts in the streaks from orbit, that researchers were finally confident enough to say they were wet with salty brines. (sciencemag.org)
All you have to do is shred whatever vegetables / fruits you want to ferment, salt them with either salt or salty brine until they are covered with water, weigh them down, and leave them be for a few weeks while they magically transform. (golubkakitchen.com)