Science & Technology

NASA plans robotic LINK mission to rescue Swift space telescope

By TestNeeti Editorial TeamPublished Thursday, 2 July 2026 2 min readSource: GKTodayArticle 18 of 21

The Neil Gehrels Swift Observatory is a NASA space telescope launched in 2004 for high-energy astrophysics. NASA is preparing a robotic servicing mission to prevent Swift's atmospheric re-entry and raise its orbit from about 360 kilometres to about 600 kilometres. The servicing spacecraft, named LINK, is being built by Arizona-based Katalyst Space Technologies and will fly on a Northrop Grumman Pegasus XL rocket, using three robotic arms to rendezvous with Swift, capture it and raise its orbit with ion thrusters. Swift's orbit has decayed since early 2025 due to increased atmospheric drag from strong solar activity that began in 2024. NASA awarded the contract in September 2025 to build and launch LINK within nine months, at a cost of $30 million. Swift's science operations have been suspended since February 2026.

Key Facts & Details

9 points

1
The Neil Gehrels Swift Observatory is a NASA space telescope launched in 2004 for gamma-ray burst, X-ray and ultraviolet studies.
2
NASA is preparing a robotic servicing mission to raise Swift's orbit from about 360 km to about 600 km and prevent re-entry.
3
The servicing spacecraft is named LINK and is built by Arizona-based Katalyst Space Technologies.
4
LINK will fly on a Northrop Grumman Pegasus XL rocket and use three robotic arms and ion thrusters.
5
NASA awarded the contract in September 2025 to build and launch LINK within nine months at a cost of $30 million.
6
Swift's science operations have been suspended since February 2026, with orbit decay since early 2025 due to strong solar activity.

Deep Dive

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The mission is planned as the first private spacecraft attempt to capture and boost an uncrewed United States government satellite.
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Swift was not designed for robotic servicing, making external capture and orbit-raising technically complex.
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If the rescue succeeds, Swift's scientific operations could resume as early as Fall 2026.

Exam Focus

Examiners may ask the name of the servicing spacecraft (LINK), the telescope being rescued (Neil Gehrels Swift Observatory), or the launch year of Swift (2004).

Exam Relevance & Angle

The LINK mission showcases emerging in-orbit servicing and satellite-life-extension technology. Rescuing the ageing Swift Observatory highlights how commercial firms can preserve costly scientific assets and manage growing risks from intense space weather, atmospheric drag and orbital decay affecting low-Earth-orbit satellites worldwide.

Target Exams

UPSC CSESSC CGLRRB NTPCState PCS

Background & Context

The Neil Gehrels Swift Observatory is a multi-wavelength NASA mission studying gamma-ray bursts, X-ray sources and ultraviolet phenomena, launched in 2004 and later renamed after astrophysicist Neil Gehrels. Low-orbit satellites gradually lose altitude due to atmospheric drag, which intensifies during periods of high solar activity as the upper atmosphere expands. In-orbit servicing and orbit-raising missions, using robotic arms and electric ion thrusters, are a growing commercial capability to extend spacecraft lifespans. Northrop Grumman's Pegasus XL is an air-launched rocket used for small payloads.