Becka A. Alper

A Pew Research Center survey of Israel provides a rare window into the religious beliefs and practices of this close-knit group.

Only about half of Millennials say they believe in God with absolute certainty, and four-in-ten say religion is very important in their lives.

Some of the largest Christian denominations in the U.S. have relatively low levels of involvement among their members.

Seven decades after the end of World War II, most American Jews say remembering the Holocaust is essential to what being Jewish means to them, personally.