NASA announces increased probability of collision of asteroid 2024 YR4 with Earth
NASA has issued a new alert about asteroid 2024 YR4, revealing an increase in the probability of an impact with Terra to 3.1% on December 22, 2032. The celestial object, discovered on December 27, 2024 by the ATLAS system on Chile, is under constant surveillance by scientists and global space agencies.
With an estimated diameter of between 40 and 90 meters and traveling at around 61,000 km/h, a possible collision would release energy equivalent to approximately eight megatons of TNT. Este scenario could result in significant damage to urban areas and generate considerable environmental impacts, requiring international attention.
The asteroid’s current trajectory indicates possible impact points in regions such as east of Oceano Pacífico, América of Sul, Oceano Atlântico, África and south of Ásia. Grandes population centers, including Bogotá, Lagos and Mumbai, are among the cities located in the risk zones mapped by experts.
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Fluctuations in impact probability
Since its discovery, the impact probability of 2024 YR4 has undergone continuous revisions, establishing it as one of the most monitored celestial bodies. Inicialmente at 1.2%, the risk rose to 2.3% and more recently to 3.1%, reflecting the dynamic nature of observations and increasing precision of data.
These variations are expected for newly discovered objects, as the accuracy of orbital calculations improves as more data is collected. Historicamente, many asteroids with high initial risk, such as Apophis, have had their chances of collision drastically reduced after in-depth analysis.
Advanced monitoring and crucial data
The asteroid is monitored by a global network of ground-based and space-based telescopes, including Telescópio Espacial James Webb. Essa Relentless vigilance is crucial to refining the 2024 YR4 trajectory and determining the need for future corrective measures. The next significant approach of Terra, scheduled for December 17, 2028, will be a key moment to collect even more accurate information and adjust the models.
Strategies for diversion and mitigation
Aerospace scientists and engineers are dedicated to studying various strategies to deflect or mitigate the effects of a possible impact. The kinetic impact method, which involves a spacecraft intentionally crashing into the asteroid to alter its orbit, demonstrated its effectiveness on NASA’s 2022 DART mission.
Other approaches include using explosives to fragment the asteroid, although this solution can generate multiple smaller, unpredictable objects. The gravitational traction technique, which uses the pull of an unmanned spacecraft to gradually modify the asteroid’s trajectory over years, is also an option being considered.
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Lessons from past cosmic events
The history of Terra is marked by impacts from space objects, which serve as reminders of the importance of planetary defense. Eventos such as the explosion of Tunguska on Sibéria in 1908, which devastated 2,000 km² of forest, and the fall of a meteor on Chelyabinsk,
Global collaboration and future agenda
The growing collaboration between space agencies reflects the urgency of planetary defense. Organizações as well as Rede Internacional of Alerta of Asteroides (IAWN) and Grupo Consultivo of Planejamento of
These initiatives aim to improve monitoring systems, develop asteroid diversion technologies and carry out impact scenario simulations. The main objective is to establish effective response plans in the event of an emergency, ensuring the safety of the planet.
In the coming years, the focus will be on refining the trajectory of 2024 YR4 between 2025 and 2027, taking advantage of the approaching 2028 for crucial new measurements. Este period will be decisive for making decisions about possible interventions.
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The potential impact date in 2032 will directly depend on the accuracy of these future observations and the scientific community’s ability to accurately predict the asteroid’s behavior as it travels through space.
