最新民调显示，美国人对「外星人造访地球」的相信度自 2012 年起稳定上升：2025 年 11 月 YouGov 以 1,114 名成人为样本，47% 认为外星人「确定或可能」曾造访；2012 年同样本数的调查仅约 36%。同时，犹豫者大幅下降：2025 年「不确定」为 16%，相较 2012 年的 48% 约减少三分之二。

立场也更两极：2025 年有 37% 认为地球「很可能未」被外星人造访，较 2012 年的 17% 超过翻倍。专家强调这是「信念」而非「经验」的量测；趋势可能与制度性讯号改变有关，例如 2017 年主流媒体披露五角大厦 UAP 影片、后续国会听证，以及 NASA 的独立研究，加上新纪录片让议题更被视为可讨论。

政党差异存在但呈现跨阵营共识：51% 民主党、49% 无党派、42% 共和党相信外星人曾造访。社群媒体与各种次文化放大连结与回音室效应，让更多人「下场表态」；同年大量影视作品与老牌系列推新，也持续供给想像素材。受访者提醒需辨识讯息来源、保持开放但不盲信；另一位学者则认为此议题正进入「可想像、可说出口」的范围，而非必然代表信仰式巨变。

Polling suggests Americans have become steadily more receptive to alien visitation since 2012. A November 2025 YouGov poll of 1,114 U.S. adults finds 47% say aliens have definitely or probably visited Earth, up from about 36% in a 2012 poll with the same sample size. Fence-sitting has collapsed: 16% are unsure in 2025 versus 48% in 2012, roughly a two‑thirds drop.

Positions are also polarizing. While belief rose, skepticism rose too: 37% now say Earth likely has not been visited, more than double the 17% recorded in 2012. Experts stress these are belief measures, not reports of experience, but point to changing legitimacy cues—2017 release of Pentagon UAP videos, subsequent congressional hearings, and a NASA independent study—plus a recent documentary that amplifies official-sounding claims.

Belief shows some bipartisan reach: 51% of Democrats, 49% of Independents, and 42% of Republicans say aliens have visited. Social media and creator-driven subcultures broaden narratives and build communities, while also risking siloed reinforcement. Pop culture saturation in 2025 (major films and franchise releases) supplies constant imagery; overall, the topic is increasingly “thinkable and sayable,” even if the polls alone cannot prove a life-altering shift.