Tagged astronomy
2 entries under this tag.
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A diagram of a cocoon
What a "little red dot" might actually be, drawn to the argument of the January Rusakov–Watson paper: a young supermassive black hole inside a dense ionized cocoon, with the spectrum the cocoon imprints.
diagram
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The palimpsest of Hipparchus
The most precise star catalogue of the ancient world survived because the scribes who erased it weren't thorough.
essay