AI Shields Earth
Caleb Ryan
| 02-12-2024
· Science Team
In the vast expanse of our solar system, numerous unknown dangers lurk, and among them, planet killers stand out as a particularly feared class of objects.
Recently, an artificial intelligence algorithm achieved a groundbreaking feat by identifying a “potentially dangerous” asteroid with a diameter of approximately 180 meters.

Discovery of 2022 SF289: A Step Forward in Asteroid Detection and Earth Protection

Dubbed 2022 SF289, this celestial body is expected to pass within a distance of about 225,000 kilometers from Earth—closer than the average gap between our planet and the Moon, which is 384,000 kilometers. While this proximity categorizes it as a “potentially hazardous asteroid,” it is crucial to note that there is no immediate threat of collision with Earth.
The program behind this discovery, named HelioLinc3D, was specifically designed to assist the Vera C. Rubin Observatory, currently under construction in northern Chile, in conducting night sky surveys over the next decade. Its primary objective is to search for space rocks in close proximity to Earth, serving as an essential tool for providing early warnings about potential collisions.
Ari Heinze, a researcher at the Rubin Observatory, emphasized the significance of this development, stating, “The discovery of 2022 SF289 makes us all safer by demonstrating the real-world effectiveness of the software Rubin will use to search for thousands of potentially dangerous asteroids that are not yet known.”

The Threat of Near-Earth Objects: Understanding Potentially Hazardous Asteroids

Within our solar system, there are tens of millions of space rocks, ranging from small asteroids to dwarf planets the size of the Moon. These remnants of planetary formation, dating back 4.5 billion years, are primarily located in the main asteroid belt between Mars and Jupiter. However, some of these objects have orbits that bring them close to Earth, raising concerns about potential threats.
Objects approaching Earth are classified as near-Earth objects (NEOs), and those asteroids coming within about 5 million miles of Earth are labeled “potentially hazardous asteroids.” However, this nomenclature does not imply an imminent collision. Similar to 2022 SF289, none of the currently identified potentially hazardous asteroids pose a threat to Earth in the foreseeable future. Astronomers closely monitor these asteroids, ensuring they remain on predictable trajectories.

Efficiency of AI in Detecting Potentially Hazardous Asteroids

The discovery of 2022 SF289, initially identified through data from the ATLAS survey in Hawaii before the completion of the Rubin Observatory, underscores the efficiency of HelioLinc3D. This artificial intelligence system streamlines the asteroid detection process, requiring fewer observations compared to traditional methods.
While approximately 2,350 potentially hazardous asteroids have been identified so far, none pose an immediate threat. However, astronomers remain vigilant, recognizing that many potentially hazardous space rocks are yet to be discovered. It is estimated that the Vera C. Rubin Observatory could uncover as many as 3,000 previously unknown potentially hazardous asteroids.
In response to this potential threat, human action is imperative. Enhanced observation and tracking of asteroids, coupled with continuous monitoring of their trajectories, are essential for accurately predicting impact risks. Simultaneously, advancing research and development in asteroid defense technology is crucial. Studying methods to deflect or destroy asteroids can provide effective strategies to mitigate the hazards associated with potential impacts on Earth. In the face of such cosmic challenges, proactive measures are vital to ensuring the safety and well-being of our planet.