Decades of Tracking Near-Earth Asteroids Reveal Progress and Ongoing Risks

Scientists have been tracking nearpod asteroids for decades to prevent potential collisions. Since 1990, over 40,000 of these space rocks have been discovered and monitored. The work involves global teams assessing risks and preparing responses to large objects that could threaten the planet.

Efforts to study near-Earth objects began in earnest during the late 20th century. NASA and other space agencies started systematic searches to identify asteroids that could come dangerously close to Earth. Their focus has been on objects larger than 1 kilometre, as an impact of that size could cause widespread destruction.

By now, more than 90% of these large asteroids have been found. International cooperation has played a key role, with organisations like the International Asteroid Warning Network (IAWN) coordinating detection, tracking, and research. The network helps share data and improve responses to any future threats. The work continues as smaller but still hazardous asteroids remain undetected. Space agencies keep refining their methods to ensure early warnings and possible deflection strategies if needed.

Tracking near-Earth asteroids remains a priority for global space programmes. With most large objects already identified, attention now shifts to smaller but still dangerous space rocks. The ongoing collaboration aims to reduce risks and protect the planet from potential impacts.