Featured series 
Tag: NASA’s Chandra X-ray Observatory
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Science & Tech
Tantalizing transit
Signs of a planet transiting a star outside of the Milky Way galaxy may have been detected for the first time.
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Science & Tech
Black hole blasts may transform ‘mini-Neptunes’ into rocky worlds
Researchers believe outbursts by a nearby supermassive black hole in the center of the Milky Way have transformed Neptune-like planets into rocky planets.
