Astronomers provide insights into the hot gaseous halo of galaxy NGC 7793
Using Spektr-RG and Chandra space observatories, Chinese astronomers have investigated a nearby spiral galaxy known as NGC ...
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Why astigmatism causes blurry vision, especially at night
Astigmatism affects about one in three Americans and it occurs more frequently as you age. The condition becomes more noticeable at night due to the contrast between dark and light. Astigmatism is ...