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The universe is the totality of all existence, encompassing all matter, energy, space, and time. It is estimated to be around 13.8 billion years old and is still expanding. The universe is made up of countless galaxies, stars, planets, and other celestial objects. [Insert link to PDF resource] To download the
The earth is a planet in our solar system, located in the Milky Way galaxy. It is the third planet from the sun and is the only known planet to support life. The earth is composed of land, water, and atmosphere, and is home to a diverse range of ecosystems and life forms. encompassing all matter