Science and technology

Space Debris Management and Debris Free Space Missions

GS3 Science and technology: spacePrelims and Mains

In the news since 18 March 2026

Why in news
On 18 March 2026, the Government told the Lok Sabha that 129 trackable debris objects from Indian missions are in orbit, and described steps under the Debris Free Space Mission and NETRA.
Debris count
129 trackable debris objects from Indian missions are in orbit as of March 2026. This includes 33 pieces from the in-orbit break-up of a PSLV C3 rocket body.
DFSM goal
DFSM was announced in 2024. It aims at zero debris creation by all Indian actors, government and private, by 2030.
ISSAR
ISRO releases the Indian Space Situational Assessment Report every year with assessments of the space situation.
International guidelines
India aligns its mitigation policy with IADC and UNCOPUOS guidelines. ISRO is an active IADC member.
IS4OM
IS4OM was set up in 2022. It coordinates long-term sustainability of outer space activities, and supports start-ups through IN-SPACe.

Don’t confuse with IADC vs UNCOPUOS: IADC is a forum of space agencies; UNCOPUOS is the UN committee on peaceful uses of outer space. Both issue debris mitigation guidelines.

Don’t confuse with NETRA vs ISSAR: NETRA is the tracking and warning project; ISSAR is ISRO's annual assessment report.

Science and technology: 57 Prelims questions since 2013; most test the concept behind the news, not the news itself. In Mains, 12 news-triggered questions.

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Worth revising until Prelims 2027: most news questions come within two years of the event.

Each time it was in the news

  1. 18 March 2026

    On 18 March 2026, the Government told the Lok Sabha that 129 trackable debris objects from Indian missions are in orbit, and described steps under the Debris Free Space Mission and NETRA.