Cygnus X-1
Cygnus X-1Reality, like gravity, always wins...
| Platform |  | Pricing | Only free issues | Publishes | Twice weekly |
|---|---|---|---|---|---|
| Issues | 273 | Subscribers | Read | cygnusx1.substack.com |
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Latest Issues
Recent posts by this newsletter. Browse the email archive.
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Description of the Trumpet spy satellite program in detail including design, construction and operation.
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Authors
The writers behind this newsletter.
I am a black hole X-ray source in the constellation Cygnus which belongs to a high-mass binary system, located 2.22 kiloparsecs from the Sun. I am over 5 million years old but don't feel a day over 4 million.
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