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IS THE BIG BANG THEORY THE TRUTH?
WE DON'T KNOW. IT'S A THEORY
HOW MANY YEARS AGO WAS THE BIG BANG?
10 TO 15 MILLIONS YEARS AGO
WHAT CAUSED THE BIG BANG?
A VERY HOT MATTER
HOW WAS THE UNIVERSE AT THE BEGINNING?
VERY HOT AND SMALL
WHAT DOES PARTICLES OF ATOMS FORM?
STARS
IS THE PLANET THE SAME SIZE IT WAS IN THE BEGINNING?
NO, IT'S EXPANDING.
WHAT DO SOME ASTRONOMERS THINK ABOUT THE GROWTH OF THE UNIVERSE?
IT WILL KEEP EXPANDING FOREVER.
WHAT DO SOME SCIENTISTS THINK ABOUT THE UNIVERSE GETTING SMALL?
SOME DAY THE UNIVERSE WILL SQUEEZE AND COLLAPSE
THE SUN IS THE BIGGEST STAR IN THE UNIVERSE.
NO, THERE ARE SOME STARS AS BIG AS THE SUN.
YES, IT IS THE BIGGEST STAR.
NO, THERE ARE BIGGER STARS.
THE SOLAR SYSTEM IS...
ONE OF THE BILLIONS OF GALAXIES IN THE UNIVERSE
THE BIGGEST GALAXY IN THE UNIVERSE
THE ONLY GALAXY IN THE UNIVERSE
THE STARS WE SEE IN THE SKY ARE ACTUALLY
THE SAME SIZE AS THE EARTH
VERY SMALL AS WE SEE
MUCH BIGGER THAN WHAT WE SEE
THE SOLAR SYSTEM IS THE CENTER OF THE UNIVERSE.
NO. IT IS JUST ONE GALAXY AMONG BILLIONS.
YES. ALL THE OTHER GALAXIES ARE AROUND THE SOLAR SYSTEM.
NO. IT'S THE ONLY THING IN THE UNIVERSE.
WHEN WE SEE PICTURES OF THE UNIVERSE IT IS...
PICTURES OF THE PRESENT.
PICTURES OF THE PAST.
PICTURES OF THE FUTURE.
HOW MANY PLANETS ARE THERE IN OUR GALAXY?
TWELVE
EIGHT
NINE
WHICH PLANET IS THE CLOSEST TO THE SUN?
VENUS
MARS
MERCURY
THE NAME BIG BANG COMES FROM...
A JOKE ABOUT THE THEORY.
PEOPLE WHO PUT THIS NICKNAME.
THE SCIENTIST WHO DISCOVERED IT.
