NASA released views of several angles of SpaceX Starship’s second test flight. The massive rocket launched from SpaceX's ...

Even as Africa’s cities are crowded with inhabitants — but not dense with capital — they are physically fragmented and dispersed. They develop as collections of small, scattered neighborhoods. Without ...

While genetic tests can reveal the ancestry of enslaved individuals, strontium analysis can now home in on where they actually grew up.

The largest city in the east of the Democratic Republic ... may be willing to use its strength to redraw the map of the region—and, in doing so, risk another catastrophic African war.