Can you buy arbitrum on Coinbase?

Excuse me, I'm curious about something. I've been hearing a lot about Arbitrum lately and I'm wondering if I can actually buy it on Coinbase, the popular cryptocurrency exchange platform. I've used Coinbase before for other cryptocurrencies, but I'm not sure if they support Arbitrum as well. Can you shed some light on this for me? Is it possible to purchase Arbitrum on Coinbase, or would I need to look for other options? Thank you in advance for your help.