The footprint of a billion-year-old collapsed volcano has been revealed in a satellite Nasa image of South Africa’s Pilanesberg ... subterranean plumbing of an ancient volcano.

Satellite images show the scale of destruction in the ... Each red dot in the picture above represents one structure hit by flooding. Severely affected neighbourhoods such as Al-Bilad and Al ...

Using this high resolution satellite ... the ancient Swahili world. This new approach to archaeological survey also has the potential to change the narrative about urbanization in eastern Africa ...