BELMONT — Tom Tan does not have problems attesting that God is the architect of life. In fact, the biochemist has faith that evolution didn't just happen by accident.

"We're learning more and more about how cells work, how DNA is regulated, how RNA is regulated, and how protein is regulated," the San Francisco resident said. "It's incredibly complex. It's hard for me to imagine that molecules came about, and all of a sudden we have life."

Tan, 33, is a member of the Congregational Church of Belmont. He thinks that science and faith go hand in hand, and he's pleased that he's not the only one.

This weekend, many congregations across the country and around the world will participate in Evolution Weekend, starting Friday and ending on Sunday.