MIT-Led Team Detects Tiny Asteroids in the Main Asteroid Belt

An international team led by physicists from the Massachusetts Institute of Technology (MIT) has developed a novel method capable of identifying asteroids in the main asteroid belt with diameters as small as 10 meters. Situated between the orbits of Mars and Jupiter, the main asteroid belt is populated by celestial bodies ranging from small stones to dwarf planets. Previously, scientists could typically detect asteroids with diameters of around one kilometer, but this new method significantly reduces that detection limit.

Researchers reported that using this approach, they identified over 100 asteroids with diameters of approximately 10 meters in the main asteroid belt. This represents the smallest asteroids ever detected in the main asteroid belt, opening up new possibilities for identifying and tracking asteroids that may come close to Earth.

In this study, scientists utilized data obtained from the NASA James Webb Space Telescope (JWST). The telescope is particularly sensitive to infrared light, and asteroids in the main asteroid belt emit significantly more infrared light compared to visible light, enabling the JWST's infrared detection capabilities to make identifying smaller asteroids feasible.