It's 2020, but we're looking back. What were the biggest science stories of 2019? Well, it was a big year for lots of things. Black hole pictures, vaping illnesses... and lots and lots of climate change news. Come on a trip down memory lane with us and the writers at Science News magazine as we take a look back at some of the top science stories of the last year. Related links: Most Americans now see signs of climate change where they live Countries urgently need to ramp up emissions cuts to meet climate targets IPCC report warns of a...