Asteroid 2024 YR4's Potential Impact on the Moon and Its Implications for Earth
Asteroid 2024 YR4 no longer poses a threat to Earth, but the probability of it impacting the Moon has increased, potentially affecting orbiting satellites.
Recent studies indicate that asteroid 2024 YR4 no longer poses a significant threat of impacting Earth. However, the probability of the asteroid colliding with the Moon has increased slightly. A Cornell University study submitted to the American Astronomy Society Journals concludes that, while Earth is no longer in danger of a direct asteroid hit, odds of the asteroid hitting the Moon have increased from 3.8% to 4.3%. If the asteroid were to impact the Moon, it could create a crater approximately 0.5 miles (0.8 kilometers) wide, which would be the largest lunar impact in the last 5,000 years. The debris from such an impact could potentially affect orbiting satellites, causing damage over a short period. Dr. Paul Wiegert, a professor of astronomy at the University of Western Ontario, stated that the asteroid could hit the Moon at a speed of approximately 29,000 miles per hour (46,700 kilometers per hour). The asteroid, approximately the size of a building, was first discovered in December 2024. Initial predictions suggested a potential Earth impact on December 23, 2032, with enough energy to cause significant damage. However, subsequent observations have determined that the asteroid will most likely miss Earth. Nonetheless, if the asteroid impacts the Moon, Earth's gravity could draw approximately 10% of the debris back to our planet. Dr. Wiegert noted that, under certain conditions, Earth's gravity can focus that material, potentially leading to impacts on satellites and other orbiting objects.