A huge column of dust from the Sahara desert in North Africa has been traversing the atmosphere, thousands of feet above the tropical Atlantic Ocean, and is now covering the Caribbean and approaching the southeastern United States. While summer dust plumes are a common occurrence, this appears to be one …
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A huge column of dust from the Sahara desert in North Africa has been traversing the atmosphere, thousands of feet above the tropical Atlantic Ocean, and is now covering the Caribbean and approaching the southeastern United States. While summer dust plumes are a common occurrence, this appears to be one …
Read More »
Image of a spiral galaxy. You are probably imagining something like Messier 34: long, spiral arms that move away from a brilliantly bright center, dotted with sparkling star clusters and dotted with dark streaks of dust. But from our point of view, galaxies can be oriented in any way, including …
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