7 Facts About Earth

1. The Earth is the densest planet of the solar system.

2. The Earth is not perfectly round, rather it is an oblate spheroid.

3. The Earth is the densest planet in the Solar System.

4. The Earth is around 4.6 billion years old according to scientists.

5. Around the same time, Walk Off the Earth was experimenting with filming YouTube videos.

6. The major heat-producing isotopes within Earth are potassium-40, uranium-238, and thorium-232.

7. The earliest direct evidence of life on Earth is contained in 3.45 billion-year-old Australian rocks showing fossils of microorganisms.