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