NEW YORK — A study published last week in Nature Astronomy has proposed a new satellite design and technique to detect thermonuclear warheads in space. Funded in part by the United States National Nuclear Security Administration, it’s the first study proposing any technique for identifying orbital warheads in peer-reviewed literature. 

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Karthik Vinod is a freelance journalist with master’s degrees in astrophysics, science and technology studies, as well as journalism from Columbia.