📖 Encyclopedia Science · · 2 min read
Foo fighters
Unexplained lights reported by aircrews in the Second World War.
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#term articles
Investigations, analysis and news from the community.
📖 Encyclopedia Science · · 2 min read
Mach effect
James Woodward's proposed propellant-free thrust effect.
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📖 Encyclopedia Science · · 1 min read
Inertial mass reduction
The idea of reducing an object's inertia for propulsion.
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📖 Encyclopedia Science · · 3 min read
Extraterrestrial hypothesis
The idea that UFOs are spacecraft from other planets.
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📖 Encyclopedia Science · · 2 min read
Ultraterrestrial hypothesis
The idea that UAP come from an unknown intelligence on Earth.
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📖 Encyclopedia Science · · 3 min read
Grey alien
The popular image of a small being with a large head and dark eyes.
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📖 Encyclopedia Science · · 4 min read
Alien abduction
The claimed taking of people by non-human beings.
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📖 Encyclopedia Science · · 2 min read
Black triangle
A large, dark, triangular craft often reported since the 1980s.
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📖 Encyclopedia Science · · 2 min read
Disclosure
The official release of government information about UFOs.
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📖 Encyclopedia Science · · 4 min read
Disinformation
False information spread deliberately to mislead.
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📖 Encyclopedia Science · · 3 min read
Men in Black
Mysterious visitors said to intimidate UFO witnesses.
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📖 Encyclopedia Science · · 2 min read
Fastwalker
A nickname for fast-moving unknown objects detected by space sensors.
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📖 Encyclopedia Science · · 2 min read
High-frequency gravitational waves
Proposed gravitational waves at high frequencies, studied by JASON in 2008.
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📖 Encyclopedia Science · · 3 min read
Zero-point energy
The lowest possible energy of a physical system, which some hope to tap for power.
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📖 Encyclopedia Science · · 3 min read
Anti-gravity
The idea of cancelling or controlling gravity for propulsion.
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📖 Encyclopedia Science · · 2 min read
Electrogravitics
The claimed link between electricity and gravity promoted by Thomas Townsend Brown.
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📖 Encyclopedia Science · · 4 min read
Remote viewing
The claimed ability to describe distant places by mental means.
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