Record-breaking X-ray blast briefly blinds space observatory

A blast of the brightest X-rays ever detected from beyond our Milky Way galaxy's neighborhood temporarily blinded the X-ray eye on NASA's Swift space observatory earlier this summer, astronomers now report. The X-rays traveled through space for 5-billion years before slamming into and overwhelming Swift's X-ray Telescope. The blinding blast is by far the brightest light source ever seen in X-ray wavelengths at cosmological distances.

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