Welcome to NASA's Eyes, a way for you to learn about your home planet, our solar system, the universe beyond and the spacecraft exploring them.

地球（英文名：Earth；拉丁文：Terra）是太阳系的第三颗行星，目前已知唯一存在生命的天体。其表面约29.2%为陆地，70.8%被海洋和其他水体覆盖，极地地区被冰层覆盖。地球的外层由 …

2025年1月22日 · While Earth is only the fifth largest planet in the solar system, it is the only world in our solar system with liquid water on the surface. Just slightly larger than nearby Venus, …

2025年1月31日 · Earth, third planet from the Sun and the fifth largest planet in the solar system in terms of size and mass. Its single most outstanding feature is that its near-surface …

NASA applies ingenuity and expertise gained from decades of planetary and deep-space exploration to the study of our home planet. The Earth Science Division operates more than 20 …

Orbital parameters Semimajor axis (10 6 km) 149.598 Sidereal orbit period (days) 365.256 Tropical orbit period (days) 365.242 Perihelion (10 6 km) 147.095 Aphelion (10 6 km) 152.100 …

2025年1月2日 · NASA Radar Imagery Reveals Details About Los Angeles-Area Landslides

2023年10月20日 · From a distance, the sun and all its planets may look like perfect spheres.They're not. Centrifugal force and "self-gravity" combine to keep them in the shape of …

climate change, global climate change, global warming, natural hazards, Earth, environment, remote sensing, atmosphere, land processes, oceans, volcanoes, land cover ...

地球是一个有天然卫星的行星（月球）。我们的月亮是夜空中最明亮、最熟悉的物体。从许多方面来说，月球是使地球成为如此伟大的家园的原因。它稳定了地球的气候，并提供了潮汐。 同 …