Andrew J.S. Hamilton is professor of astrophysicial and planetary sciences at the University of Colorado in Boulder. He teaches courses on cosmology, astrophysics, and astronomy and is an expert on black holes.

Carol Goodman Kaufman is a psychologist and author of Sins of Omission: The Jewish Community’s Reaction to Domestic Violence. She was the founding chair of the Domestic Violence Task Force for the Jewish Community of Central Mass. She is based at the Haddassah Institute at Brandeis University in Waltham, Massachusetts.

Don Lindley is an assistant professor of criminology at Jesuit-run Regis University in Denver and was a member of the Denver Police Department for 33 years.

The Shamatha Project is a research project that is attempting to measure the human potential for happiness by studying the long-term benefits of meditative practice. It is a collaboration between neuroscientists and psychologists at the University of California and B. Alan Wallace, a Tibetan Buddhist monk who is founder and president of the Santa Barbara Institute for Consciousness […]

Read an editorial in the Aug. 13, 2012, edition of the Jesuit weekly America calling for more gun control in the wake of the Aurora, Colo., shooting.

James Dobson is founder and former president and chairman of the board of Focus on the Family. In 2010, he founded a new ministry called Family Talk.

Tim Gill is founder and chairman of the Denver-based Gill Foundation, which says it is the largest private foundation in the U.S. focusing on gay, lesbian, bisexual and transgender civil rights. It provides grants through the Gay & Lesbian Fund for Colorado.

Bradley J. Widstrom is an assistant professor of youth and family ministries at Denver Seminary in Littleton, Colo. The youth and family ministry department offers a master’s degree in youth and family counseling with a focus on at-risk youths.

Donald E. Messer is a co-author of Ending Hunger Now. A United Methodist theologian, he is now executive director of the Center for Church and Global AIDS, which is based in Centennial, Colo.