In geophysical terms, the Moon is a planetary-mass object or satellite planet. Its mass is 1.2% that of the Earth, and its diameter is 3,474 km (2,159 mi), roughly one-quarter of Earth's (about as wide as the contiguous United States).
The Moon makes Earth more livable, sets the rhythm of ocean tides, and keeps a record of our solar system's history. Explore NASA lunar science here.
Moon.vn là nền tảng giáo dục trực tuyến, cung cấp giải pháp học tập toàn diện cho học sinh, sinh viên với đa dạng các khóa học chất lượng cao, được thiết kế theo lộ trình chi tiết, bài bản bởi đội ngũ giáo viên giàu kinh nghiệm cùng các chuyên gia hàng đầu trong lĩnh vực.
The Moon was the first new world on which humans set foot; the information brought back from those expeditions, together with that collected by automated spacecraft and remote-sensing observations, has led to a knowledge of the Moon that surpasses that of any other cosmic body except Earth itself.
Track the moon phase today with our interactive moon phase calculator. Get details on the current moon phase and the next full moon date.
Use our Moon Phase Calendar to find dates and times of the full Moon, new Moon, and every phase in between. Beyond the phases of the Moon, you will also see daily Moon illumination percentages and the Moon's age.
New Moon and Full Moon calendar with precise times and simulation of the Moon phase today. When is the next Full Moon?
Four astronauts embarked on a high-stakes flight around the moon Wednesday, humanity’s first lunar voyage in more than half a century and the thrilling leadoff in NASA’s push toward a landing ...