The big hope was that it would come from digital television distributed by satellite.

ECONOMIST: Tests for television

Products are physically distributed through a network of distribution centres, satellite warehouses, storage facilities, and depots.

FORBES: Breaking Out Unilever's Value By Product Line

The Natural Environment Research Council (NERC) has sent up a reconnaissance flight to investigate how the ash is distributed in the cloud, something that is impossible to assess from satellite imagery.

BBC: Icelandic volcanic ash alert grounds UK flights