Here's what's important to understand:
* The universe has always existed. Kepler was a brilliant astronomer who made significant contributions to our understanding of the universe, but he didn't *discover* it.
* Kepler's discoveries were about the solar system. He formulated the three laws of planetary motion, which described how planets orbit the sun.
* Our understanding of the universe is constantly evolving. Scientists continue to make new discoveries about the universe, building upon the work of those who came before them.
So, while Kepler made groundbreaking contributions to astronomy, it's incorrect to say he "discovered the universe." He helped us understand a small part of it better.
