welcome to a black hole mini lesson by
Gio Remy so what is a black hole the
black hole isn't exactly what you think
it is normally people would assume that
a black hole is literally a hole in
space but that isn't quite right the
term black hole refers to the fact that
there is an empty space in the shape of
a hole in the universe in actuality the
center of a black hole contains a point
that has no volume but a large mass
resulting in an infinite density we call
this point the singularity the empty
space around the singularity is there
because all light is trapped by the
intense amount of gravity from the
singularity
see the reason we see anything is
because light in the visible spectrum is
reflected off of objects and into our
eyes when the light is trapped in the
black hole we aren't able to see
anything from evidently this makes a
black hole practically invisible so now
you're wondering if a black hole is
invisible how do we even find it the
reason we find black holes is not
because of the light that's being pulled
in we find black holes because we're
able to detect how the light around it
is being affected
we can see how gasps stars are affected
by the intense gravity also in order to
see the way that gases are affected we
look in the x-ray spectrum which can be
detected from Earth by are many
telescopes
oh no we can detect the black hole from
Earth does that mean it can suck us in
the answer is no black holes don't
necessarily go around just sucking up
anything in its way there aren't any
black holes that are near our solar
system for it to have an effect on us
other than our discovery of them and us
going crazy because our laws of physics
don't work in the center of a black hole
even if a black hole was to replace our
Sun and have the same mass we'd still
orbit around the same way because it
would have the same gravity there are
some would never become a black hole
because it's way too small we need
something bigger to form a black hole
when a massive star about 25 times the
size of our Sun or larger can no longer
produce energy in its core the radiation
from its nuclear reactions isn't enough
to keep the star energized the gravity
causes the cord to collapse into a
single point thus creating the black
hole the supernova from the event may
blast the stars outer layers away into
space or they may fall into the black
hole
making it heavier
now that you know the basics of a black
hole your innovative mind can be used to
figure out the unanswered questions we
still have about black holes thanks for
watching this was Gio with your mini
lesson on black holes
