网传“地球将失重7秒”，真相来了！

Core Viewpoint - The viral "doomsday warning" claiming that Earth will experience weightlessness for 7 seconds on August 12, 2026, is a baseless rumor with no scientific foundation [1][3][7]. Group 1: Rumor Details - The rumor states that on August 12, 2026, the world will experience 7.3 seconds of weightlessness, leading to millions of casualties and infrastructure damage, with an estimated 40 to 60 million deaths [3][5]. - It attributes the cause to the collision of gravitational waves from two black holes, which was supposedly predicted with a 94.7% probability in 2019 [5][12]. - The rumor has been circulating since early this year, having been revived from a 2024 leaked NASA document [5][17]. Group 2: Scientific Analysis - Experts from the Chinese Academy of Sciences assert that the claim of Earth losing gravity for 7 seconds is entirely false, as gravity is determined by the mass of the Earth, which cannot simply disappear [7][9]. - The assertion that people and objects would slowly rise to 15-20 meters contradicts physical laws; if gravity were to vanish, objects would be ejected at high speeds rather than rising slowly [11][20]. - The impact of gravitational waves on Earth is negligible, requiring extremely precise instruments to detect, and the effects of two colliding gravitational waves are minimal [14][16]. Group 3: Astronomical Events - On August 12, 2026, a total solar eclipse will occur, which is a common astronomical event that has been accurately predicted [17][18]. - The eclipse will not affect Earth's gravitational field; it will only block sunlight temporarily, leading to minor changes in surface temperature and tidal forces [20]. Group 4: Public Awareness and Rumor Prevention - Similar doomsday rumors have appeared in the past, exploiting public fear of the unknown and misunderstanding of astronomical events [22]. - Experts recommend verifying claims through authoritative sources and applying basic scientific knowledge to discern the truth [22].