Yes, an astronaut in space is generally considered to be completely weightless. This is because weight is defined by the gravitational force exerted on an object, and in the microgravity environment of space, the force of gravity is very weak compared to that on Earth. As a result, astronauts experience a sensation of weightlessness and can move freely without the pull of gravity. However, it is important to note that they still have mass and their weightlessness is a result of continuously freefalling around the Earth, rather than being completely devoid of any gravitational forces.
