Astronomers discover most puzzling cosmic blasts ever observed!

NASA is studying a surprising cosmic burst at the centre of distant galaxy that has burned for more than a week, longer than astronomers have ever seen before, the US space agency said Thursday.

Calling it "one of the most puzzling cosmic blasts ever observed," NASA said it has mobilised the Hubble Space Telescope along with its Swift satellite and Chandra X-ray Observatory to study the phenomenon.

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