The Overview Effect
Refers to the experience of seeing firsthand the reality that the Earth is in space, a tiny, fragile ball of life,
"hanging in the void", shielded and noursished by a paper-thin atmosphere.
It often transforms astronauts perspective on the planet and humanity's place in the universe.
Some common aspects of it are a feeling of awe for the planet,
a profound understanding of the interconnection of all life, and a renewed sense of responsibilitiy for taking care of the environment.
Frank White. The Overview Effect: Space exploration and human evolution. American Institute of Aeronautics and Astronautics, 2014.