aponigricon
infaller
blanet
quasiblack
Kerr geometry
quasistar
ergosphere
bored
hyperaccretion
Hawking's paradox
kugelblitz
peribothron
superkick
Penrose process
hypernova
frozen star
ferme
BTZ black hole
Kruskal-Szekeres coordinates
eternally collapsing object
Sagittario
thermalon
firewall
regular black hole
melanoheliophobia
intercrater
perinigricon
intracloud
keyhole
air hole
spaghettification
cavum
big crunch
bullet hole
pitfall
infall
pit
hollow-hearted
collapsar
Messier 87*
microhole
unnova
smirch
Cygnus X-1
Cygnus
throughbore
cloudbust
Kerr black hole
perforation
collector