[Experiment] Prompts for Weightlessness Inside a Spaceship | 8 Conditions, 24 Images

Conclusions First

• Even with just the base prompt, spacesuits and ISS-like interiors are generated, but the person stands on the floor with no sense of weightlessness.
• zero g cabin can generate a pose of a floating body inside a spacecraft — effective as a zero-gravity expression.
• iss interior reproduces a module structure close to the actual ISS interior with a blue flight suit, and the person floats in midair.
• space window generates a composition with Earth visible through a large window, and floating poses appear. Highest visual impact.
• hair spread shows hair spreading radially outward with the body also floating in a spacecraft interior.
• curled pose generates a curled floating pose with bent knees in a cylindrical module interior — feels weightless.
• objects floating creates a composition where instruments and debris float in the surroundings, but it becomes more of an outer space scene rather than “inside” a spacecraft.

Experiment Design

Base Prompt

Clothing and background varied per condition to observe both spacecraft interior reproduction and zero-gravity expression.

A00: control

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Observation: All 3 images show a woman in a white spacesuit (with helmet) standing upright against a spacecraft interior background. The background depicts ISS-style interiors dense with switch panels, monitors, and cables. Feet are firmly on the floor and hair hangs with gravity. No elements suggest weightlessness. Spacesuits were generated despite no space-related words in the base prompt — reason unknown.

A01: zero g cabin

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Observation: Dramatically different from the control. Changed from spacesuit to white t-shirt and jeans (s2) or casual clothing. s2 shows the body floating in midair with feet off the floor and hair spreading lightly, smiling with both hands spread wide. Background is an ISS-style module interior (white walls, switch panels, lighting panels). Barefoot — a detail that adds realism to the zero-gravity depiction. Compared to the control’s upright stance, there is a clear sense of weightlessness.

A02: iss interior

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Observation: s2 shows a woman in a blue flight suit (close to the type actual ISS crew wear) floating inside the ISS, one hand raised with feet off the floor. The background shows cylindrical module walls, round portholes, and what appears to be a floating tablet device. The angle and atmosphere is close to actual ISS press photography. Compared to the control, clothing, background, and pose all changed — high effectiveness as a zero-gravity expression.

A03: objects floating

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Observation: s2 shows a woman in a white t-shirt and shorts sitting in a capsule-style pod against a space background, surrounded by multiple floating cameras, instruments, and machine parts. Hair spreading to the side. Rather than “inside” a spacecraft, it’s more like being ejected into outer space — imagery of debris scattered against a gray starry background. Object floating is reproduced, but different from a closed ISS interior space.

A04: space window

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Observation: s2 shows Earth (blue ocean, white clouds, landmass) clearly visible through a large window. The woman in a white t-shirt and shorts has her body floating in midair, in a dynamic spread-eagle floating pose with hair flowing sideways. ISS-style white walls and small monitors are arranged around the window frame. The floating scene against an Earth backdrop has very high visual impact and immediately conveys weightlessness.

A05: hair spread

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Observation: s2 shows the woman floating in midair inside an ISS interior (blue metal frame, monitors, cables). The most notable feature is hair spreading radially upward in a large halo. White t-shirt and shorts, barefoot. Arms spread wide, smiling. The degree of hair spread is the most prominent across all conditions — serving as a strong visual cue that the environment is weightless. Background reproduction is also high quality.

A06: curled pose

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Observation: s2 shows the woman in a cylindrical spacecraft module interior with knees bent and one arm raised in a floating pose, wearing a white dress-like outfit, barefoot. Hair flowing sideways. Wide-angle-lens-like distortion emphasizes the depth of the cylinder. Switch panels, orange lights, and monitors line the walls. The curled floating pose looks naturally relaxed in a weightless environment.

A07: reaching

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Observation: s2 shows a woman inside a spacecraft interior with one hand reaching high upward, looking up. White t-shirt and shorts, barefoot. Feet appear slightly off the floor, but floating is more subdued compared to other conditions. Hair hangs with gravity. Background is ISS-style white walls with monitors and cables. reaching induces a reaching/extending arm motion, but does not directly translate to weightlessness expression.

Summary

For generating zero-gravity spacecraft interior scenes, space window (Earth backdrop + floating) or iss interior (ISS press-photo style) are recommended. To emphasize hair’s zero-gravity expression, add hair spread. zero g cabin also has strong floating pose induction. objects floating tends toward an outer-space composition, so caution is needed when aiming for interior scenes.

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