Big Bang Theory
The Big Bang Theory is the
dominant scientific theory
about the origin of the
Universe.
According to the theory, the
Universe was created
sometime between 10
billion and 20 billion years
ago from a cosmic
expansion that continues to
spread matter in all
directions.
Big Bang Theory
Discoveries in astronomy and
physics have shown beyond a
reasonable doubt that our
Universe did, in fact, have a
beginning.
Prior to that moment there was
NOTHING. During and after that
moment there was something: our
Universe.
The Big Bang Theory is an effort to
explain what happened during
and after that moment.
Big Bang Theory
• According to the theory, our Universe
began as “singularity”.
• Singularities are zones which defy the
current understanding of physics. They are
thought to exist at the core of Black Holes.
As we know. Black Holes are areas of
intense gravitational pressure. By
mathematical theory, the pressure is so
intense that finite matter is actually
squished into infinite density (…boggles the
mind, eh?).
• These zones of infinite density are called
"singularities." By the Big Bang, our
Universe began as an infinitesimally small,
infinitely hot, infinitely dense, something - a
singularity.
Big Bang Theory
• After its initial appearance,
the singularity inflated (the
"Big Bang"), expanded and
cooled. It went from very,
very small and very, very
hot to the size and
temperature of our current
Universe.
• The Universe continues to
expand and cool to this day
AND we are inside of it
Big Bang Theory
There are many misconceptions
about the Big Bang Theory.
Misconception #1
• There was NOT an explosion.
Rather, there was…and continues
to be…an expansion. Rather than
imagining a balloon popping and
releasing its contents, imagine an
infinitesimally small balloon
expanding…and expanding…and
expanding.
Big Bang Theory
Misconception #2
• A fireball did NOT suddenly
appearing at the beginning of the
Universe. Rather, space did not
exist prior to the Big Bang. Steven
Hawking and others suggest, from
mathematical calculations extending
Einstein’s Theory of Relativity, time
and space had a finite beginning
that corresponded to the origin of
matter and energy. The singularity
did not appear IN space; rather,
space began inside of the
singularity. Prior to the singularity,
NOTHING existed -- not space, time,
matter or energy - nothing.
Big Bang Theory
What is the proof?
• Galaxies appear to be moving
away from us at speeds
proportional to their
distance…suggesting an
expanding universe.
• Remnant heat from our very,
very hot beginning has been
measured.
• Hydrogen and helium are
found throughout the
Universe…again, supporting
the idea of expansion.
Big Bang Theory
If the Big Bang Theory is
correct, the creation of the
Universe occurred
OUTSIDE of our natural
realm of explanation. In
other words, could there be
a God, the master architect,
outside our reality? I do
not answer the question; I
just pose it.
Another
Bust-a-Gut Production