NPR's Up First is the news you need to start your day. The three biggest stories of the day, with reporting and analysis from NPR News — in 10 minutes. Available weekdays at 6:30 a.m. ET, with hosts ...

January 9, 2026 • Many Americans say the U.S. is not a moral leader but want it to be, according to an NPR/Ipsos poll. And, the FBI is taking over the investigation into the fatal Minnesota ICE ...

Molecular dynamics is a method that uses Newton’s equations of motion to computationally simulate the time evolution of a set of interacting atoms. Such techniques are dependent on a description of ...