TED-Ed: How far would you have to go to escape gravity? - Rene Laufer

The video explores the concept of gravity, starting with the gravitational interactions between celestial bodies like the Black Widow pulsar and its companion star. It explains how gravity is a universal force affecting all objects with mass, as described by Newton's Law of Universal Gravitation. The video discusses how gravity varies on Earth, from sea level to Mount Everest, and extends to space, affecting astronauts in the International Space Station. It also covers the gravitational influence of distant celestial bodies like the Sun and the Andromeda Galaxy. Finally, a thought experiment is presented on escaping Earth's gravity by tunneling to its center.

What happens to gravitational pull as you move farther away from Earth?

Describe the thought experiment involving tunneling through a spherical Earth and its implications on gravity.