# Question: Does Space Weigh Anything?

## Do astronauts weigh anything in space?

Astronauts on the orbiting space station are weightless because…

a.

there is no gravity in space and they do not weigh anything.

space is a vacuum and there is no gravity in a vacuum..

## How do you find your weight in space?

A: To calculate weight due to gravity, you would use Newton’s law of universal gravitation. The force of gravity (F) is equal to the gravitational constant (G) times the mass of one object (m1) times the mass of a second object (m2) divided by the square of the distance between them (r).

## What would my weight be on the moon?

Your weight on the Moon is 16.5% what you would experience on Earth. In other words, if you weighed 100 kg on Earth, you would weigh a mere 16.5 kg on the Moon. The mass of the Moon is only 1.2% the mass of the Earth, so you might expect it to have only 1.2% of the gravity. …

## How much would a 100 pound person weigh on Mars?

38 lbsIt varies based on factors like your mass, the planet’s gravity, and the distance between you and the planet’s center. If you weighed 100 lbs on Earth, you would weigh only 38 lbs on Mars!

## What’s my weight on Mars?

So an object or person on Mars would weigh 37.83% its weight on earth. Therefore, a person would be much lighter on mars. Conversely, a person is 62.17% heavier on earth than on Mars.

## What would I weigh on Pluto?

on Mars and a mere 9 lbs. (4 kg.) on the dwarf planet of Pluto. Note that Mercury and Mars have the same proportional gravity, even though Mars is almost twice as massive as Mercury.

## Do you have a weight in space?

The weight of an object is a force. It is the force with which a body is attracted toward Earth or another celestial body. This means that when you are in space, away from Earth, objects do not weight anything since they do not feel gravitational attraction to the Earth.

## Does weight decrease in space?

Astronauts quickly lose weight in space and return to Earth a little slimmer than when they left, scientists said Thursday in releasing findings from NASA’s most elaborate medical research mission. … The weight loss is one of a number of rapid body changes observed during the flight.

## Do astronauts lose muscle in space?

Studies have shown that astronauts experience up to a 20 percent loss of muscle mass on spaceflights lasting five to 11 days. … Even though muscle mass and strength can be regained once astronauts have returned to Earth, maintaining muscle in space is a concern, especially for long-duration space missions.

## Why do we weigh less in space?

In space without gravity pulling down on them, Astronauts are essentially weightless. It is important to explore the difference between mass and weight. … However, if we went from Earth to Mars, our weight would change because Mars has less gravity than Earth. Gravity is a force pulling matter together.

## Do astronauts have the same mass in space?

The first obstacle is that in the microgravity of space, their weight is essentially zero, all the time. But astronauts still have mass, which they can measure to determine what their weight on Earth would be, and to let medical researchers track changes in body mass due to deconditioning in orbit.