Earth Is Leaking Into Space
In the exosphere, atoms and molecules are so far apart that they can travel hundreds of kilometres without colliding. Some of them escape Earth entirely.Earth's Exosphere and Atmospheric Escape
The Planet Loses Gas Every Second
Each second, Earth loses about 3 kg of hydrogen and 50 g of helium from the exosphere. This outer layer is so thin that some scientists treat it more like interplanetary space.Earth's Exosphere and Atmospheric Escape
