Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer. From low Earth orbit, NASA's SeaWIFS instrument records ocean color, tracking changes in our water world's climate and biosphere . But even an ocean planet can have dust storms. While there are indications that the planet-spanning effects of the Saharan dust events include the decline of the ecologies of coral reefs in the Caribbean and an increased frequency of Atlantic hurricanes , there is also evidence that the dust provides nutrients to the Amazonian rain forests . From space-based vantage points , other satellite images have also revealed storms which transport massive quantities of fine sand and dust across Earth's oceans .
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