Astronomers using NASA’s Chandra X-ray Observatory have discovered the largest and brightest set of rings from X-ray light echoes ever observed. These extraordinary rings, produced by an intense flare ...
Radio image of the S-shaped precessing jet launched by the neutron star in Circinus X-1. Both Cir X-1 itself (centre of the image) and a background source have been subtracted from the image to make ...
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