Earth
Earth, the only planet known to support life, is our home in the vast cosmos.
Earth, the only planet known to support life, is our home in the vast cosmos.
Earth is the third planet from the Sun and the only known planet to support life. With its vast oceans, diverse ecosystems, and atmosphere that sustains life, Earth is often referred to as the "Blue Planet" due to its distinctive blue appearance from space.
Earth's atmosphere is composed of nitrogen (78%), oxygen (21%), and trace amounts of other gases like carbon dioxide, argon, and water vapor. This unique mixture allows life to thrive and provides protection from harmful solar radiation.
Earth has one natural satellite, the Moon. The Moon is the fifth largest moon in the solar system and has a significant effect on Earth's tides and rotation.
Earth's climate is varied, ranging from arctic conditions in the poles to tropical climates near the equator. The planet experiences four seasons—spring, summer, autumn, and winter—due to its axial tilt as it orbits the Sun.
Earth is the birthplace of humanity, and over thousands of years, humans have developed advanced civilizations, technology, and cultures. The planet continues to be home to diverse life forms, including over 8 million species of plants, animals, and microorganisms.