Pew Research Center is a nonpartisan, nonadvocacy fact tank that informs the public about the issues, attitudes and trends shaping the world.

Build stable, high-performance dashboards using REPT formulas and UNICHAR symbols instead of conditional formatting.

Abstract: The space environment is becoming increasingly crowded, raising the likelihood of collisions between satellites. Accurate prediction of satellite orbits is crucial for space transportation ...

(CNN) - A 2-year-old boy with a very special set of skills is already a world record holder, thanks to some unforgettable snooker trick shots. Jude Owens, 2, has been confirmed as a double Guinness ...

The attendance of this year's National Western Stock Show was the highest it has been since 2006. Alex Pretti spotted on camera moments before fatal shooting in Minneapolis Enormous freshwater ...

Abstract: Traditional exercise recommendation algorithms generate exercise groups according to the features of exercises for all students. However, as different students may have different knowledge ...