We share the latest photo selected as AP's Picture of the Week winner, taken by you - the readers! The post AP Picture of the ...

Researchers mapped Earth’s ionosphere, part of the upper atmosphere, using signal data from 40 million phones – a method that could improve GPS accuracy and help track space weather ...

Migratory birds are known for their ability to traverse thousands of kilometers to reach their breeding or wintering grounds.

A small but mighty cluster of sunspots have made their biggest mark yet on Earth's magnetosphere—and on the radio signals ...