City lights, fires, effects of pollution, auroras, sand and dust storms ... though not a weather satellite, flies an instrument (ASAR) which can see changes in the sea surface.

Vast stretches of Russian coast have been tarred by heavy fuel oil from two freighters that foundered in a storm.

If your sinuses went haywire last Sunday, the probability is it was caused by dust from the Sahara Desert that blanketed the central Mediterranean Sea. Satellite imagery from the EU’s Copernicus ...