The "overview effect" is a term coined by author Frank White in 1987 to describe the profound cognitive shift and emotional response reported by astronauts when viewing Earth from space. It often involves a heightened sense of connection to humanity and the planet's fragility.
NASA astronaut Christina Koch, who holds the record for the longest single spaceflight by a woman, has spoken about experiencing this perspective-altering phenomenon during her missions. The concept has been discussed in relation to crews from the Apollo era to the International Space Station.
The upcoming Artemis II mission, scheduled to launch no earlier than September 2025, will carry astronauts—including the first woman and the first person of color on a lunar mission—on a journey around the Moon. While they have not yet flown, the crew has trained for and anticipated this profound experience, which will be the first human voyage to lunar distance since Apollo 17 in 1972.
Psychological studies suggest the experience can lead to long-term changes in perspective, emphasizing planetary unity and environmental stewardship. The effect remains a subject of interest in space psychology and human factors research.
