A team led by researchers at the University of Oxford has created the most complete map of the world's rivers ever made, ...

A powerful solar flare erupted early Tuesday, disrupting radio signals across Earth, said the NOAA Space Weather Prediction ...

The setting of J. R. R. Tolkien's The Lord of the Rings and The Hobbit was ancient, but did it have a prehistoric period like ...

The solar flare, which peaked at 4:25 a.m. ET, hurled streams of plasma and charged particles into the cosmos.