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ISRO averts multiple collision threats: NISAR, Chandrayaan-2 face close orbital encounters amid rising space debris

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The report confirms that multiple collision avoidance manoeuvres (CAMs) were executed, including fourteen in low-Earth orbit and four in geostationary orbit, a total of 18. 

The Indian Space Research Organisation (ISRO) has revealed a stark reality of modern space operations: Earth’s orbit is becoming increasingly crowded and hazardous. According to the Indian Space Situational Assessment Report (ISSAR) 2025, the number of objects in orbit continues to surge, driven by unprecedented global launch activity and satellite deployments. In 2025 alone, 4,651 objects were placed in orbit, showing the scale of congestion.

A total of 4651 objects were added to the space object population in this year in a significant rise compared to the previous years- the space object population increased by 2963 objects from 254 launches in 2024 and 3135 objects from 212 launches in 2023 ”, the report noted.

This congestion has led to a sharp rise in “close approach alerts”, warnings issued when two objects come dangerously near each other. ISRO noted that such alerts are now frequent, reflecting what it described as an “alarmingly rising congestion” in low-Earth orbit. The situation is compounded by space debris travelling at speeds of nearly 28,000 km/h, where even minute fragments can threaten operational satellites.

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