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On November 14, 2025, the Moderate Resolution Imaging Spectroradiometer (MODIS) on NASA’s Terra satellite acquired this true-color image centered on Moldova, which is hidden under a broad bank of low cloud (fog). Fog also stretched into eastern Romania, where it seeps into low river valleys, and a small bit of western Ukraine.
Dense morning fog is common in this portion of Eastern Europe in the autumn, when cool weather arrives. Fog can be categorized by the way it forms. The most common type that forms over low elevations in autumn and winter is “radiation fog”. According to the U.S. National Oceanic and Atmospheric Administration (NOAA), radiation fog forms at night when heat absorbed by the earth’s surface during the day is radiated into space. As the earth’s surface continues to cool, provided a deep enough layer of moist air is present near the ground, the humidity will reach 100% and fog will form. Radiation fog varies in depth from 3 feet to about 1,000 feet and usually remains stationary. This type of fog can reduce visibility to near zero at times and make driving very hazardous.
Image Facts
Satellite:
Terra
Date Acquired: 11/14/2025
Resolutions:
1km (86.9 KB), 500m (248.9 KB), 250m (314.9 KB)
Bands Used: 1,4,3
Image Credit:
MODIS Land Rapid Response Team, NASA GSFC