What is ‘The Overview Effect’?

Many astronauts experience a cognitive shift while in space, often referred to as the ‘Overview Effect’. What exactly is this phenomenon, and how does it influence an individual’s perception and emotions?

Astronauts are often seen as individuals who, despite their extraordinary experiences in space, remain firmly grounded. Their extensive training prepares them to perform highly precise tasks in the demanding environment of microgravity, where adaptability and problem-solving are essential. In the event of a malfunction on the International Space Station, for example, astronauts must rely predominantly on their own expertise, with mission control providing only limited support. Consequently, the expectation is not for astronauts to be dreamers, but to remain grounded in their work.

Contrary to expectations, however, a different phenomenon appears to unfold. When astronauts venture into space, they often undergo profound psychological shifts. Many report experiences that verge on the spiritual or religious, describing a heightened sense of unity with the Earth, humanity, and even a compelling feeling of being watched by a higher power. These experiences can have a lasting impact on their lives, though this is not always the case. Interestingly, such sensations are not confined to those with religious beliefs; even astronauts who are non-religious or indifferent towards spirituality often report similar experiences.

The term ‘Overview Effect’¹, loosely translated into Polish as cosmic euphoria, was coined by Frank White in 1987 in his book The Overview Effect: Space Exploration and Human Evolution. The phenomenon is illustrated by the examples provided below.

James Irwin

In 1971, James B. Irwin (1930–1991) was the lunar module pilot on the Apollo 15 mission. Before his journey to the Moon, he was a non-practicing Protestant. However, the experience had a profound effect on his spiritual life. Upon his return, he stated: ‘I was […] a “silent” Christian, but I believe God sent me to the Moon so that I could come back to Earth and proclaim His Son, Jesus Christ.’²

A year after his Moon landing, Irwin left NASA and founded the High Flight Foundation. His efforts were focused on promoting the message of Jesus Christ and arguing that science aligns more with creationism than evolution. Irwin also led expeditions to Turkey in search of Noah’s Ark.³ Is it therefore possible to be both an astronaut and a creationist?

Edgar Mitchell

Edgar D. Mitchell (1930–2016) was another astronaut who experienced cosmic euphoria, although he took a different direction to James Irwin. Mitchell was the lunar module pilot for Apollo 14, which landed on the Moon in early 1971. He also explored altered states of consciousness,⁴ a practice often incorporated into spaceflight training. Astronauts occasionally experience such states during missions, often due to the physical strain of rocket launch acceleration.

Upon his return to Earth, Mitchell experienced a sensation he later described as samadhi. In Eastern religions, this term denotes a profound meditative state, characterised by a sense of spiritual unity with all of existence. After leaving NASA in 1972, Mitchell co-founded the Institute of Noetic Sciences, a research organisation dedicated to the study of parapsychological phenomena.

‘Zack’

Deana L. Weibel suggests that Mitchell experienced not only the ‘Overview Effect’ but also a deeper phenomenon, which she coined the ‘Ultraview Effect’. She describes it as an emotional reaction to the sight of an exceptionally starry sky.⁵

This feeling was shared by more than just Edgar Mitchell. An anonymous astronaut, known as ‘Zack’ in Weibel’s account,⁶ described with awe his experience of seeing the Milky Way while orbiting the Moon:

‘(A)t some points in my orbit around the moon, I was sheltered from both the earth and the sun, so I was in complete darkness. And all of a sudden, the star patterns out there became something that I was not ready for . . . So many stars I couldn’t see one. Just a sheet of light. I don’t know whether you’d call it spiritual or not, but when I saw the starfield out there in a way that nobody else has ever seen . . . I had some pretty profound thoughts…’⁷

This experience had a profound impact on Zack. He started writing poetry, reflecting on the starry field he had observed. Yet, it also led him down a rather unconventional and controversial spiritual path. He came to the conclusion that humans are not alone in the universe and that some historical figures, such as the biblical Noah, may have been visitors from space.⁸

Timothy Peake

Here is another example of a secular astronaut, this time from the United Kingdom, who experienced cosmic euphoria. In 2016, after returning from the International Space Station, Timothy Peake, though still agnostic, began to suggest that the evidence around us points towards intelligent design. He references both the perspective of Earth from space and the laws of physics at the microscopic level. As he put it:

‘Although I say I’m not religious it doesn’t necessarily mean that I don’t seriously consider that the universe could have been created from intelligent design. […] There are many things in science that lead us to this conclusion.’⁹

Conclusion

Regardless of how we assess the spiritual paths taken by individual astronauts, one thing seems certain: when astronauts view Earth as a sphere from above and witness the vast, star-filled cosmos (especially when the Sun is obscured), they undoubtedly experience the Overview Effect or cosmic euphoria. Mirosław Hermaszewski—the only Pole to have flown into space, who himself sensed the presence of ‘something’ or ‘someone’ watching over him—remarked on his Soviet colleagues with the following words:

‘I don’t know of any believer who returned from space an atheist, but I do know of those who went as non-believers and came back with faith. I am particularly referring to my colleagues from the East. Nearly 95 percent of Soviet cosmonauts experienced a conversion.’¹⁰

In brief, it is profoundly challenging to remain an atheist in space. The view of Earth and the vast expanse of space inspire such deep awe that it can fundamentally alter a person’s perspective. Where do these feelings come from? Who or what has instilled them within us, allowing certain stimuli to bring them to the surface? Why are such emotions beyond the experience of animals? The answer appears to be definitive: only God could have created humans and endowed them with such feelings, as neither evolution nor natural selection possesses this capacity.

By the way, we recommend reading the articles:

• Science vs. Religion: Which Side Holds the Truth?
• Intelligent Design or Just an Illusion of Design?
• The Qumran Scrolls – The Most Important Discovery in Biblical Archaeology
• The Five Wonders of Atheism – The Origin of the Universe
• God and Genocide? A Critical Examination of the Difficult Passages of the Bible
• How Long Did Crude Oil Actually Take to Form?
• Noah’s Flood – Global or Local in Extent?

Footnotes

1. In literal terms, this phrase indicates the effect of a very broad view of our planet when seen from high above.
2. Irwin, J., More Than Earthlings: An Astronaut’s Thoughts for Christ-centered Living, Broadman Press, Nashville, 1983, quoted in Bergman, J., Colonel James Irwin: Creationist Astronaut, Institute for Creation Research, October 31, 2013, available at: https://www.icr.org/article/7724/ (translated).
3. Ibid.
4. Weibel, D.L., ‘The Overview Effect and the Ultraview Effect: How Extreme Experiences in/of Outer Space Influence Religious Beliefs in Astronauts’, Religions, 11(8), 418, available at: https://www.mdpi.com/2077-1444/11/8/418/htm
5. Ibid.
6. This may be one of only four Apollo astronauts: Michael Collins (Apollo 11), Dick Gordon (Apollo 12), Al Worden (Apollo 15), or Ken Mattingly (Apollo 16). These are the only astronauts who remained in the command module around the Moon while their colleagues were on its surface and lived (or live) long enough to be interviewed by Weibel, who began conducting interviews in 2004. Stu Roosa (Apollo 14) and Ron Evans (Apollo 17) died in the 1990s.
7. Ibid. 
8. Ibid.
9. Chaffee, S., ‘The Case of Tim Peake Shows the Perils of “Awe”’, Evolution News, October 6, 2018, available at: https://evolutionnews.org/2018/10/the-case-of-tim-peake-shows-the-perils-of-awe/ 
10. Hermaszewski, M., ‘Nie znam nikogo, kto był wierzący i wrócił stamtąd ateistą’, Nowa Trybuna Opolska, July 3, 2010, available at: https://nto.pl/miroslaw-hermaszewski-kosmonauta-nie-znam-nikogo-kto-byl-wierzacy-i-wrocil-stamtad-ateista/ar/4156979.

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