Size of the earth compared to the observable universe
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Earth Size and Radius Compared to Observable Universe
The Earth has a radius of about 6.4 × 10^8 cm (6,400 km or 6.4 × 10^6 m) and a mass of approximately 6 × 10^27 grams 12. These measurements have been confirmed through both historical geometric methods and modern physical calculations 23.
Observable Universe Size and Scale
The observable universe is vastly larger than the Earth. While the exact size of the observable universe is not directly stated in the provided data, it is implied to be on a cosmological scale, with the universe's total mass estimated at around 5.4 × 10^53 kg . The universe is also about 13.73 billion years old, which gives a sense of its immense scale .
Comparing Earth to the Observable Universe
The Earth is minuscule compared to the observable universe. The Earth's radius (about 6,400 km) is tiny when set against the universe's scale, which spans billions of light-years. Early human understanding often overestimated the Earth's importance and size relative to the universe, but modern science has shown that the Earth is just a tiny part of a much larger cosmos .
Conclusion
In summary, the Earth’s size is extremely small compared to the observable universe. The Earth’s radius is about 6,400 km, while the observable universe stretches across billions of light-years and contains a total mass many orders of magnitude greater than that of the Earth 1245. This vast difference highlights the immense scale of the universe compared to our planet.
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