The Moon is Earth's only natural satellite. It orbits at an average distance of 384 399 km (238,854 mi; about 30 times Earth's diameter). The Moon's orbital period (lunar month) and rotation period are synchronized by Earth's gravitational pull at 29.5 Earth days, making the same side of the Moon always face Earth

2025年4月2日 · Observers on Earth can track the Moon's motion in space (relative to Earth and the Sun) through moon phases, supermoons and eclipses. On the night of March 13 or early in the morning of March 14, depending on time zone, the Moon will pass into Earth’s shadow and appear to turn red. Here's what you need to know.

2025年1月30日 · More than 105 robotic spacecraft have been launched to explore the Moon. It is the only celestial body beyond Earth – so far – visited by human beings. The Moon's weak atmosphere and its lack of liquid water cannot support life as we know it. Apollo astronauts brought back a total of 842 pounds (382 kilograms) of lunar rocks and soil to Earth.

2025年3月25日 · Earth has just one moon – a rocky, cratered place, roughly a quarter the size of Earth and an average of 238,855 miles away. The Moon can be seen with the naked eye most nights as it traces its 27-day orbit around our planet.

5 天之前 · Moon, Earth’s sole natural satellite and nearest celestial body. Known since prehistoric times, it is the brightest object in the sky after the Sun. Its name in English, like that of Earth, is of Germanic and Old English derivation.

6 天之前 · The Moon displays these eight phases one after the other as it moves through its cycle each month. It takes about 27.3 days for the Moon to orbit Earth. However, because of how sunlight hits the Moon, it takes about 29.5 days to go from one new moon to the next new moon. Here’s what the Moon looks like right now from Earth:

2025年4月2日 · The Moon is a natural satellite, or a space object that orbits around something else. Our Moon is Earth’s natural satellite. In general, a moon is a natural satellite of a planet, and a planet is a special kind of natural satellite that orbits a star and also meets other conditions. Learn more: What makes a planet a planet? How did the Moon form?

The Moon (or Luna) is the Earth’s only natural satellite and was formed 4.6 billion years ago around some 30–50 million years after the formation of the solar system. The Moon is in synchronous rotation with Earth meaning the same side is always facing the Earth.

2024年1月11日 · The orbit changes over the course of the year so the distance from the Moon to Earth roughly ranges from 357,000 km to 407,000 km, giving velocities ranging from 1.100 to 0.966 km/s.

2023年5月23日 · Learn how Earth's moon formed, how its orbit affects Earth's tides, why solar and lunar eclipses happen and the history of lunar exploration.