NASA has selected four companies to provide payload processing facilities under the Spacecraft Processing Operations Contract on‑ramp provision. The provision enables qualified providers to offer commercial payload processing services for agency missions launching from multiple locations where capabilities were not available at the time of the initial contract award. Contract awardees are: Through the contract,…

A NASA-funded air pollution monitoring network has provided one of the most detailed long-term views yet of the role of black carbon, or soot produced by fires, diesel vehicles, and other combustion sources, in Ethiopia’s capital, Addis Ababa. The detailed measurements show how pollution changes by time of day and season, including increases associated with…