You can find both the 2014 and 2020 series across several major streaming platforms:
You do not need to pirate Cosmos to see the "new" content. Here is the legal path to free streaming: cosmos a spacetime odyssey online new
But a decade after its initial release, fans are searching for one specific thing: Are there new episodes? Where can you stream the existing series in high definition? And what is the status of the "new" content fans are craving? You can find both the 2014 and 2020