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08 novembro 2017
NGC 1055 Close up
Big, beautiful spiral galaxy NGC 1055 is a dominant member of a small galaxy group a mere 60 million light-years away toward the aquatically...
Why Crossbows Were Used Up Until The 1500s
The horizontally-held crossbow was invented by the Chinese around 2,000 years ago. And it was a huge improvement over the simple bow-and-arrow...
Rare Encircling Filament
NASA's Solar Dynamics Observatory came across an oddity that the spacecraft has rarely observed before: a dark filament encircling an active...
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