Impacts from asteroids shape the Moon and other planetary bodies, but such events are rarely observed in real time. Most impacts on the Moon are too small to notice, and those that are visible are often much less dramatic. According to NASA\u2019s Center for Near-Earth Object Studies<\/a>, the expected impact from 2024 YR4 would be far more significant, producing a visible flash followed by a glow visible to Earth\u2019s telescopes. <\/p>\n This event provides an incredible opportunity for scientists to test existing theories on how craters form and how impacts influence a planetary body\u2019s geology. As explained in a study published on arXiv<\/a>, led by Yifan He<\/a> from Tsinghua University, who is leading research on the potential impact, the event would allow scientists to study the heat released by the impact, how lunar material absorbs and emits that heat, and gain valuable data about the Moon\u2019s composition beneath its surface. <\/p>\n A Moonquake Like Never Before<\/p>\n The impact from 2024 YR4 could also trigger seismic waves <\/a>strong enough to be recorded as a \u201cmoonquake.\u201d<\/a> Scientists predict that the impact could generate seismic waves with an intensity equivalent to magnitude 5 on Earth, far stronger than anything detected by the Apollo mission\u2019s seismometers.<\/p>\n The ability to study seismic waves from such an event would be invaluable to planetary scientists. As calculations suggest, this \u201cmoonquake\u201d could provide unprecedented data on the Moon\u2019s subsurface, helping to refine models of the Moon\u2019s internal structure. <\/p>\n Is Lunar Debris the Next Satellite Danger?<\/p>\n The debris created by the impact could reach Earth\u2019s orbit, potentially posing a threat to satellites and spacecraft. Paul Wiegert<\/a>, an astronomer at the University of Western Ontario, explained that:<\/p>\n \u201cThe impact would excavate a crater about 0.62 miles (1 kilometer across),\u201d he said. \u201cMost of this material would fall back to the moon, but a small fraction, around 0.02% to 0.2%, could be ejected at high enough speeds to\u00a0escape the moon.\u201d<\/p>\n Fragments of lunar debris could hit satellites moving at speeds of around 10 kilometers per second, fast enough to damage or destroy these valuable spacecraft. <\/p>\n \u201cThe debris would be travelling a bit slower than typical meteors, at around 22,400 miles per hour (10 km\/s) rather than 44,700 to 67,100 mph (20 to 30 km\/s), but this is still faster than most bullets.\u201d<\/p>\n The potential for cascading collisions, known as Kessler Syndrome, is also a concern. This phenomenon could disrupt satellite networks and cause widespread communication and navigation failures.<\/p>\n Should We Intervene or Let It Happen?<\/p>\n As the asteroid\u2019s trajectory is monitored and refined, the question arises: should we attempt to deflect it, or should we let the event occur naturally? The U.S Space Agency <\/a>has demonstrated the ability to alter an asteroid\u2019s path with its DART mission, which successfully redirected an asteroid in 2022. <\/p>\n![\"Diagram](\"https:\/\/www.newsbeep.com\/nz\/wp-content\/uploads\/2026\/02\/Diagram-showing-the-position-uncertainty-of-asteroid-2024-YR4-in-2032.gif\")
Diagram showing the position uncertainty of asteroid 2024 YR4 in 2032. Credit: NASA\/JPL Center for Near-Earth Object Studies.<\/p>\n