Test your knowledge of science facts and applications of scientific principles by taking our 11-question quiz, then compare your answers to the average American and across demographic groups.
Sortable table of estimates of unauthorized immigrant populations in 182 U.S. metropolitan areas, derived from a sample of census data.
Facebook and WhatsApp are the most widely used social media platforms and messaging applications in 11 countries around the world.
Generally better educated and more racially and ethnically diverse, Millennials have also been slower to marry and form their own households than previous generations of young adults.
Sortable table below showing major laws aimed at the LGBT community in the 15 countries that once made up Soviet Union.
More countries see climate change as a top international threat, but many people also name ISIS and cyberattacks as their top security concern.
Almost 160 years after Charles Darwin publicized his groundbreaking theory on the development of life, Americans are still arguing about evolution
Pew Research Center estimates that 10.7 million unauthorized immigrants, the lowest level in a decade, lived in the U.S. in 2016
Explore detailed tables on the number and share of immigrants and emigrants by country.