No, The Moon's gravity is much less than the Earth's gravity - approximately one sixth. So, a 100 kg astronaut weighs 980N on Earth. On the Moon, the astronaut would weigh only 162.2N. However, the astronaut's mass is 100kg where-ever they are. Weight on Earth: 100kg x 9.8m/s2 = 980N. Mass, a coherent, typically large body of matter with no definite shape. Weight, a body's relative mass or the quantity of matter contained by it, giving rise to a downward force; the heaviness of a person or thing. hope this helps