Astronomers at the Massachusetts Institute of Technology (MIT) have identified the tiniest asteroids ever detected. These objects, found in the main asteroid belt, measure just 10 metres across.
Using data from NASA's James Webb Space Telescope (JWST), the team discovered 138 new decameter-sized asteroids. This is a remarkable improvement over previous technology, which could only detect kilometre-sized asteroids. The research, published in Nature, highlights the importance of these small, bus-sized asteroids. Unlike rare giant asteroids, smaller ones can pose frequent risks.
Small Asteroids and Their Potential Risks
Historical events show their impact potential. The Tunguska event in 1908 flattened a Siberian forest, while the 2013 Chelyabinsk meteor injured thousands in Russia. Both were caused by asteroids of similar size to those identified in this study.
Advances in Detection with Innovative Techniques
Lead researcher Artem Burdanov said the method enhances planetary defence. "We can now track small asteroids earlier," he explained. The team used "shift and stack," an imaging technique that isolates faint objects. This approach removes interference from nearby celestial bodies, making detection more precise.
Initially tested with the SPECULOOS survey, the method was later applied to JWST data. The results revealed known and previously undetected asteroids near the TRAPPIST-1 system. Researchers believe these smaller asteroids formed through collision cascades in the main belt.
Read Also: Witness the 2024 Cold Moon: When and how to watch year's last full moon with Geminid meteor shower
Unlocking New Insights into Asteroid Dynamics
This discovery opens a new window into asteroid behaviour and composition. As scientists delve deeper, they aim to uncover asteroid origins and their potential impact on Earth.
The findings offer a valuable tool for monitoring near-Earth objects. Enhanced detection methods may improve planetary safety and boost understanding of the asteroid belt.
Discover the latest Business News, Sensex, and Nifty updates. Obtain Personal Finance insights, tax queries, and expert opinions on Moneycontrol or download the Moneycontrol App to stay updated!
