BEIJING -- China has successfully established the world's first three-satellite constellation based on the Distant Retrograde Orbit in the Earth-moon region of space, laying a foundation for the ...

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Cassiopeia A is a supernova remnant located about 11,000 light-years away in the constellation Cassiopeia, and is one of the brightest radio sources in the sky, offering key insights into the death of ...

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Chandra excels at capturing chaos. An astronomical feature called Cas A, in the constellation Cassiopeia, is a blast of debris expanding at millions of miles an hour; it was fired from a supernova ...

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Forbes contributors publish independent expert analyses and insights. I cover aerospace, astronomy & hosted The Cosmic Controversy Podcast.

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