1. Black holes
What may be the end?
It can be the beginning
What little clues it sends
Matter is spinning
The many things it sweeps
No light can peep
It rises, it aspires, and it struggles against the pull
Hidden by its black cape
Allowing nothing to escape
It’s the all powerful
The all deceitful
Black hole...

2. "According to a mind-bending new theory, a black hole is actually a tunnel between universes—
a type of wormhole."(National Geographic)
Einstein's space-time singularity theory suggests that matter does not collapse into a single
point. Instead, matter spirals down infinetly to an alternate reality and the black hole may contain a
universe in itself.
Singularites according to Einstein is created when matter in a given region gets too dense.
Therefore this can apply toward giving evidence to where black holes do exist and the explanation of
gamma ray bursts that appear to be associated with supernavoae-star explosions (when a star runs out
of fuel this happens).
found in website
The Kerr metric (or Kerr vacuum) describes the geometry of empty spacetime around an
uncharged axially-symmetric black-hole with an event horizon which is topologically a sphere. The Kerr
metric is an exact solution of the Einstein field equations of general relativity; these equations are highly
non-linear, which makes exact solutions very difficult to find. The Kerr metric is a generalization of the
Schwarzschild metric, which was discovered by Karl Schwarzschild in 1916 and which describes the
geometry of spacetime around an uncharged, spherically-symmetric, and non-rotating body.
"According to a mind-bending new theory, a black hole is actually a tunnel between universes—
a type of wormhole."(National Geographic) Einstein's space-time singularity theory suggests that matter
does not collapse into a single point. Instead, matter spirals down infinitely to an alternate reality and
the black hole may contain a universe in itself.