gravity, space, zero gravity

Is There Gravity in Space?

Is there gravity in space? Yes, there is! In fact, on the International Space Station (ISS), which orbits Earth at an altitude of around 220 miles (354 km), the force of gravity is still about 90 percent of what it is here on Earth. So how can the International Space Station be called “zero gravity”?

Science Unmasked

Is There Gravity in Space?

Yes, there is! In fact, on the International Space Station (ISS), which orbits Earth at an altitude of around 220 miles (354 km), the force of gravity is still about 90 percent of what it is here on Earth. So how can the ISS be in “zero gravity”? What is zero gravity? Well, let’s start ...

Troy Oakes

The International Space Station.