Assertion: black hole | /r/CapableOf | spin at close
Facets:
value: very
type: DEGREE
value: to its maximum rate
type: OTHER
Source sentences:
text: Using X-ray data from Chandra, the Rossi X-ray Timing Explorer, and the Advanced Satellite for Cosmology and Astrophysics, scientists were able to determine the spin of Cygnus X-1 with unprecedented accuracy, showing that the black hole is spinning at very close to its maximum rate.