Can I buy polygons on Coinbase?

I'm a bit perplexed here, could you clarify for me? Is it possible to purchase polygons, the blockchain platform, through Coinbase, the popular cryptocurrency exchange? I've been looking around and haven't found a clear answer. If it's indeed available, could you guide me through the process? And if not, could you suggest alternative platforms or methods where I could acquire polygons? It's been quite a challenge navigating the cryptocurrency world, and your expertise would be greatly appreciated.