Earth Facts and Images

Earth Facts

• Earth is the third planet from the Sun and the only known planet to support life.
• It has a diameter of about 12,742 km (7,918 miles).
• About 71% of Earth's surface is covered with water, and the remaining 29% is land.
• Earth has one moon, known simply as "the Moon."
• It takes Earth 24 hours to complete one rotation, which defines a day.
• It takes Earth about 365.25 days to orbit the Sun, which defines a year.
• Earth's atmosphere is composed mainly of nitrogen (78%) and oxygen (21%).
• Earth's surface is divided into several tectonic plates that move over time.
• The planet has a diverse range of climates, from tropical to polar regions.
• Earth has a magnetic field that protects it from solar radiation.
• Earth’s atmosphere allows it to maintain temperatures that can support liquid water.
• Earth has seasons due to the tilt of its axis relative to its orbital plane.
• Earth's biosphere has significantly altered the atmosphere and other abiotic conditions.
• The planet has more than 8 million species of plants and animals.
• Earth's surface is mostly covered by oceans, which play a key role in regulating its climate.
• The tallest mountain on Earth is Mount Everest, reaching a height of 8,848 meters (29,029 feet).
• The deepest oceanic trench is the Mariana Trench, which reaches a depth of about 11 kilometers (7 miles).
• Earth's internal structure is divided into a solid inner core, a liquid outer core, a mantle, and a crust.
• Earth's climate has changed significantly over geological time, influencing the evolution of life.
• Human activity has a significant impact on Earth's ecosystems and climate.