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                    |  |  |  | Orion Views Earth from Afar 
 Fifty years after Apollo 17 astronauts photographed the iconic “blue marble” image, cameras in space have again captured distant views of our home planet. |  | 
                  
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                    |  |  |  | A Burst of Activity at Mount Semeru 
 Intense explosions at the summit sent avalanches of ash and mud racing down the southeastern flank of the Indonesian volcano. |  | 
                  
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                    |  |  |  | Larger Wheat Harvest in Ukraine Than Expected 
 A satellite-based analysis indicates that nearly 27 million tons of wheat were harvested from the country's farms this year, but Ukraine won't reap all of the benefits. |  | 
                  
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                    |  |  |  | Lake Achit and the Khovd River Floodplain 
 Water, frozen and flowing, shapes and colors this rural area of Western Mongolia. |  | 
                  
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                    |  |  |  | Breathing Life into the Ocean 
 Almost all life in the ocean depends on tiny photosynthetic organisms known as phytoplankton. |  | 
                  
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                    |  |  |  | Fires in Northwest Argentina 
 Forests are burning after being primed by warm temperatures and a lack of rain. |  | 
                  
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                    |  |  |  | Vibrant Aurora Over Hudson Bay 
 The light show dipped south of the Arctic Circle, where it was especially bright over northeastern Canada. |  |