Solar Panels the Afterlife

Since the country is obsessed with going green I wanted to investigate what is going on with solar panels. I am very much interested in putting these on my own home and have become very curious about how it all work. I know that solar panels have a life span of 25 to 30 years but what comes after? I will try to email or call companies involved in the future of new solar panel inovations and the recycling process of solar panels. I have many questions I propose to answer.... Why do solar panels wear out?, What are we doing with them after their lifespan?, What's being done to recycle them?, What's being done to extend their life? Are there any advancements to making them easier to recycle? Have they thought about where we will get the rare metals to continue production if we can no longer get them from another country?