Is There Gravity in Space?
Gravity in space exists, but is very weak.
Sure! Gravity is everywhere. The effect diminishes with distance, but it never goes away.
So the term "zero-g" is a misnomer. What really happens to astronauts (or satellites) is they fall sideways as they're falling toward the planet, a setup that keeps them in orbit and feeling weightless.
Where the space station roams, some 250 miles (400 kilometers) up, the force of gravity is about 90 percent what it is here on the surface.
Life's Little Mysteries: Gift Edition Hardcover Book
Uncover the truth behind more than 100 mysteries that surround us every day with our new hardcover book! Perfect for gifts and classrooms, and suitable for all ages. Some of the included mysteries are:
- Why Do Cats Land on Their Feet?
- How Long Does it Take to Make Petrified Wood?
- What Everyday Things Around Us Are Radioactive?
Find out all of this and much, much more in our NEW hardcover book.
It makes a great gift idea for all ages. more info>>