Astrophysicist Hugh Ross travels the globe speaking on the compatibility of scientific discoveries with the truths of Christianity. The organization he founded, Reasons to Believe (RTB), is dedicated to demonstrating that science and biblical faith are allies, not enemies.

Working alongside Hugh is his wife, Kathy. She holds a master’s degree in English from the University of Southern California and serves as Hugh’s primary editor. She also serves on the RTB board of directors.

Philosopher and theologian Kenneth Samples is passionate about helping people understand the reasonableness and relevance of Christianity’s truth claims. He is a senior research scholar at Reasons to Believe (RTB) and the author of many books, including Clear Thinking in a Messy World, Christianity Cross-Examined, and Classic Christian Thinkers.

John Bloom earned a PhD in physics from Cornell University, then went to seminary and completed a second PhD in Ancient Near Eastern studies (Old Testament backgrounds). For the past 29 years he has taught physics at Biola University. He also started the Master of Arts in Science and Religion program at Biola’s Talbot School of Theology in 2004, in collaboration with the Christian Apologetics program.

Dr. Bloom and his wife, Claudia, live in La Mirada with their son David.

Ken Hultgren has worked at Reasons to Believe (RTB) for 25 years and now serves as chief development officer. With a background spanning church ministry, private industry, and graduate training from Fuller Theological Seminary, Ken brings a deep passion for helping Christians think critically about their faith and for introducing non-Christians to the hope of the gospel. He has led Bible studies for both youth and adults for over 30 years and currently teaches a young adult group at his local church.

Ken and his wife, Jenny, have been married for 33 years and enjoy restoring historic homes together. They have three daughters and live near RTB’s headquarters in Covina, California.