Amazing fact about The Discovery of the First cosmic X-ray source.

The discovery of the first cosmic X-ray source (besides the sun) occurred in 1962. Called Scorpius X-1, this extrasolar X-ray source is the strongest known source of X-ray in the sky. It is located about 9,000 light years away, in the Scorpius constellation. Today, many thousands of X-ray sources are known, though they are not as strong