NASA conducts low-altitude flight over Chicago area Wednesday

Did you hear the loud roar of jet engines in the skies above the Chicago on Wednesday? Nothing to worry about, just our friends at NASA conducting experiments on the atmosphere.

CHICAGO - NASA’s DC-8 flew over Chicago and the city's surrounding areas for a research project on Wednesday.

The scientific research project with NASA Armstrong Flight Research Center (NOAA) is called AEROMMA. The project aims to study atmospheric emissions and reactions observed in both megacities and marine areas.

Flyovers are done conducted at a safe altitude to avoid harming the public, wildlife, and infrastructure, according to NOAA.