👉 In the context of space exploration, "outechos" refers to the outermost layer of a planet's atmosphere. This is typically composed of gases and dust that are held back by the planet's gravity, preventing them from falling back into the Earth's atmosphere. The layers of this outer atmosphere include the stratosphere (which extends up to about 10 kilometers above the surface), the thermosphere (which extends to about 50-60 kilometers above the stratosphere),
