is still used by scientists to map objects in the sky. Hipparchus’s star catalog is the oldest known attempt to document the positions of as many objects in the night sky as possible ...

Nile or Amazon? It’s not as straightforward as you think. Let’s untangle the science, measurements, and muddy sources behind ...

The world’s longest river has become the center of a tense geopolitical struggle in Africa. At the heart of this conflict ...

Egypt is often known for its ancient history, vast deserts, and famous landmarks like the Pyramids of Giza - but now it’s ...

Swooping low over the banks of a Nile River tributary, an aid flight run by retired American military officers released a ...