Recently, a viral claim circulating on social media states that ‘Earth will experience weightlessness for 7 seconds in August this year,’ sparking public concern. The rumor suggests that a rare alignment of Jupiter and Saturn will cause Earth to lose gravity for seven seconds, making people briefly float. However, NASA has clearly debunked this claim, stating it has no scientific basis.NASA experts explain that while gravitational forces between planets do exist, their influence on Earth is extremely weak—far too negligible to cause any ‘weightlessness.’ Earth’s own gravity firmly keeps us grounded, and the gravitational pull from distant planets like Jupiter and Saturn is insignificant at such vast distances. Moreover, no astronomical event can suddenly cancel Earth’s gravity at a specific moment.Such rumors often exploit public curiosity and misunderstandings about astronomy, using sensational or fabricated information to attract attention. In fact, similar claims about ‘7 seconds of weightlessness’ have surfaced multiple times over the years, each time refuted by authoritative scientific institutions.Experts advise the public to stay rational when encountering sensational ‘astronomical news’ online and to consult reliable sources such as NASA or the Chinese Academy of Sciences. Scientific literacy and critical thinking remain the best defenses against pseudoscientific misinformation.
近日，一则‘今年8月地球将失重7秒’的消息在社交媒体上广泛传播，引发公众关注。该传言称，由于木星和土星的特殊排列，地球将在8月某日经历7秒钟的‘失重’状态，届时人类会短暂漂浮。然而，美国国家航空航天局（NASA）已明确辟谣，指出这一说法毫无科学依据。NASA专家解释，行星之间的引力确实存在，但其对地球的影响极其微弱，远不足以造成所谓的‘失重’现象。地球自身的引力牢牢地将我们固定在地表，而其他天体的引力作用在如此遥远的距离下几乎可以忽略不计。此外，没有任何天文事件会在特定时间点突然消除地球引力。此类谣言往往利用公众对天文现象的好奇与误解，通过夸张甚至虚构的信息吸引眼球。实际上，类似‘失重7秒’的说法早在多年前就曾多次出现，每次都被权威机构澄清。专家建议，面对网络上的‘惊人天文消息’，公众应保持理性，优先查阅NASA、中国科学院等权威科学机构发布的信息，避免被误导。科学普及和批判性思维是抵御伪科学谣言的最佳武器。
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