Assertion: andromeda galaxy's star | /r/LocatedNear | black hole
Facets:
Source sentences:
text: The sequence begins with a backyard constellation view and ends with the new Hubble Space Telescope image that centers on the 100-million-solar-mass black hole at the core of the galaxy and the young blue stars surrounding the black hole.
text: The blue stars surrounding the black hole are no more than 200 million years old, and therefore must have formed near the black hole in an abrupt burst of star formation.