Using night lights to show both population density and economic activity, this study combined imagery from NOAA's DMSP F17 satellite with US Geological Survey maps of flood-prone areas world wide.

Sudanese archaeology is being put on the map,” said Sudan’s antiquities chief Salah Ahmed. The Merowe dam is a controversial hydro-electric project — one of the largest in Africa — being ...

On Sunday, we plan to take part in a joint emergency assessment by air to map the extent of the damage in the east and along the Blue Nile River. Sudan has asked UN agencies to assist flood victims in ...