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Space scientists on Earth have improvised a tool on the Mars rover to help them figure out how a giant mountain on the Red Planet came to be. Their surprising conclusion: It's likely windswept sand.

Data from nearly 43,000 men around the world found that sperm counts dropped by more than half in Western countries. It could reflect a decline in health overall, scientists say.

The Social Security Administration says it's trying to clean up its records. But immigration advocates fear the real objective is to expose undocumented immigrants at work.

Rodney Robinson, a teacher at a juvenile detention center in Richmond, Va., and the 2019 National Teacher of the Year, talks about needing diverse teachers and a culturally relevant curriculum.

Carhenge in Alliance, Neb., will be prime viewing for this month's total solar eclipse. The town is preparing for thousands of visitors.

Two Alaska moms create a Yup'ik alphabet coloring book, with an Iñupiaq one next in line.

Asylum rules in the U.S. paired with millions of cases backing up immigration courts are causing a major headache for the country.

Puerto Rico's unstable electric grid affects every sector of society, including the island's rich cultural scene. An outage abruptly ended an emerging pianist's recent concert, touching a nerve.

Christmas starts early in a lot of retail stores, but in Venezuela it's starting Oct. 1. NPR's Scott Simon explains.

Research shows that a toxic mix of past traumas and the stresses of resettlement puts refugee kids at significantly higher risk of long term mental health challenges. A new effort aims to mitigate those risks by supporting parents and children in refugee families.