A recent analytical study combining deep visual models with text mining methods has illuminated how space tourism is represented and discussed on TikTok, revealing both the visual and linguistic contours of public engagement. Object detection applied to keyframes from short videos yielded a frequency ranking of prominent categories, many directly tied to aerospace exploration. “Person” unsurprisingly ranked first, underscoring the human presence in nearly all content. Rockets, with a frequency of 7,153, occupied the third position, often shown alongside launch sites, which ranked eleventh. Other transportation-related objects—aircraft, airplanes, and spaceships—appeared frequently, reflecting their central role in the space tourism narrative.
Astronauts, described in Article V of the Outer Space Treaty as “envoys of mankind in outer space,” ranked fourth, while space stations held sixth place. The International Space Station’s 22 years of continuous habitation exemplify humanity’s capacity for sustained operations beyond Earth. Space suits, satellites, and imagery of galaxies, planets, asteroids, comets, and specific celestial bodies such as Earth, Moon, Mars, and Venus were also common, often extracted from cinematic storytelling to emphasize the grandeur of the cosmos.
The linguistic analysis employed Latent Dirichlet Allocation (LDA) to classify topics within titles, narration texts, and comments. Titles clustered into four distinct themes. The largest, at 43.4%, promoted terrestrial space-themed experiences, often aimed at parent–child tourism. Keywords like “universe,” “space,” “travel,” and “exploration” were paired with promotional phrases such as “This is an ideal destination for parent‒child tourism.”
The second title category, 25.7%, spotlighted China’s aerospace achievements, with terms like “Shenzhou” and “space station” underscoring national progress. The Shenzhou program’s 19 missions since 1999 symbolize China’s expanding role in space. A third category, 18.0%, focused on commercial enterprises, prominently Virgin Galactic and its founder Richard Branson, whose suborbital reusable vehicles have advanced accessible space tourism. The fourth, 12.9%, centered on exploration plans involving Mars, launches, and references to historic spacecraft such as Voyager One and Two.
Narration texts revealed seven categories, four clearly defined. The largest, 45.6%, described space infrastructure, blending technical terms like “spacecraft,” “rocket,” and “orbit” with general vocabulary to convey foundational concepts. Another, at 16.4%, depicted cosmic scenes, integrating scientific details about planets and the solar system. Offline exhibitions formed 10.7% of narrations, highlighting interactive terrestrial experiences, often for children, with immersive simulations of zero gravity or planetary surfaces. Private sector activities comprised 10.1%, frequently referencing Blue Origin, SpaceX, and their founders Jeff Bezos and Elon Musk, whose ventures have demonstrated the viability of commercial spaceflight.
Comment analysis offered a window into public sentiment. The largest segment, 27.6%, reflected thoughts on businesses and entrepreneurs, with “Musk” ranking third in frequency. Safety concerns emerged through phrases like “come back,” pointing to apprehensions about health risks such as reproductive hazards and genetic changes documented in prior research. Another 26.7% of comments expressed national pride in China’s aerospace achievements, with remarks like “Praise the powerful motherland!” and “Salute to the great astronauts!”
A third comment category, 23.3%, revolved around public interest in affordability, contrasting “wealthy” with “cheap” and pressing companies to lower costs. The phrase “going up to sky” encapsulated aspirations for accessible space travel. The fourth category drew on science-fiction influences, noting how works like 2001: A Space Odyssey and Star Trek have shaped perceptions of space exploration. Comments such as “Looking back at those science-fiction novels now, it feels like a documentary” captured the interplay between imaginative narratives and real-world technological advances.
By integrating visual object detection with topic modeling, the study mapped a complex ecosystem of imagery, language, and sentiment. The findings not only chart current public attitudes toward space tourism but also provide actionable insights for content creators, engineers, and industry stakeholders seeking to engage audiences in the evolving frontier of human space travel.