Dynamic Air Pollution Alerts 0 - Image Index | 20 Ways AI is Advancing Air Quality Monitoring and Prediction Urban Nighttime Scene with Constellation Displayed on Cell Phone Screen: A hand holding a cell phone with a screen displaying a constellation on it. The person's left hand is visible, and their thumb is resting on the top of the phone. Their nails are short and neatly trimmed. They appear to be wearing a black long-sleeved shirt or jacket. The background is blurry but appears to be an urban setting at night, with lights from street lamps and buildings reflecting off wet pavement. There are several people walking in the distance, their silhouettes visible against the bright lights of the city.