The universe is everything that exists, including all matter, energy, and space. It is estimated to be around 13.8 billion years old and contains billions of galaxies, each with billions of stars. The widely accepted Big Bang theory explains that the universe began as an infinitely dense point that rapidly expanded and cooled, leading to the formation of matter and the development of structures like galaxies and stars. Despite the visible matter, most of the universe is made up of invisible dark matter and dark energy. Scientists predict the universe will continue expanding and eventually lead to a heat death where energy is evenly distributed.

1. THE UNIVERSE

2. WHAT IS THE UNIVERSE
• The universe is everything that exists, including all matter,
energy, and space.
• It is estimated to be around 13.8 billion years old and
continues to expand at an accelerating rate.

3. STRUCTURE OF UNIVERSE
• The universe is composed of billions of galaxies, each
containing billions of stars and their planetary systems.
• Our own galaxy, the Milky Way, contains approximately 100
billion stars.

4. THE BIG BANG THEORY
• The Big Bang theory is the most widely accepted scientific
explanation for the origin of the universe.
• According to the theory, the universe began as a singularity, an
infinitely dense and hot point, which rapidly expanded and
cooled, leading to the formation of matter, galaxies, and
eventually stars and planets.

5. DARK ENERGY AND DARK
MATTER
• Despite all the matter that we can see and observe, scientists
have determined that there is far more matter in the universe
that cannot be seen, known as dark matter and dark energy.
• Dark matter is thought to make up approximately 27% of the
universe, while dark energy is believed to account for
approximately 68% of the universe.

6. THE FUTURE OF UNIVERSE
• Scientists predict that the universe will continue to expand at
an accelerating rate, eventually leading to the heat death of
the universe, where all matter is evenly distributed and no
more energy can be extracted from it.

7. CONCLUSION
• The universe is an awe-inspiring and vast subject that
continues to captivate the minds of scientists and the general
public alike.
• Despite all that we have learned, there is still much that we
don't know about the universe, making it an ongoing area of
study and discovery.

8. •Thank you for viewing this
presentation on the universe. I
hope you found it informative
and interesting!