Will It Ever Be Possible to Go to Sun?

As you know, sun is the biggest nuclear power plant that we know. It continuously burns its mass to produce heat and light - energy; following Einstein's law, E= MC2. As of today we don't have materials that can shield man and machines from such high temperatures. We do not know, whether we would be able to make this kind of materials, even in the near future. Until that time, our reaching the sun would remain a distant dream and the challenge.