Weaponization of Outer Space
Science & Technology
- PYQs8
- Articles1
Background
This concept is central to understanding contemporary global security challenges, the strategic importance of space, and the implications for international relations, arms control, and technological advancements. It involves strategic deterrence, arms control, and the peaceful use of outer space.
The increasing development and deployment of offensive capabilities in outer space, such as anti-satellite missiles, co-orbital systems, and directed energy weapons, raise concerns about the potential for future conflicts fought in or through space, impacting critical terrestrial infrastructure and global security.
Facts & tables
- Counter-space Capabilities
- Include kinetic attack systems (e.g., DN-3, SC-19 missiles), laser-based systems, and co-orbital satellites (e.g., SJ, TJS series) designed to interfere with or destroy satellites.
- Strategic Impact
- Potential to disrupt global communication, navigation (GPS, NavIC), financial markets, and military Command-and-Control (C2) and Intelligence, Surveillance, and Reconnaissance (ISR) networks.
- Regulatory Gap
- The absence of a comprehensive international regulatory framework for space security contributes to an escalatory dynamic.
- Kessler Syndrome
- Risk of cascading space debris from destructive anti-satellite (ASAT) tests, rendering certain orbital regions unusable.
| Type | Reference |
|---|---|
| Conceptual area | International Relations |
| Conceptual area | Science & Technology |
Prelims angle
Prelims angle: Factual recall
Prelims angle: Purpose or function of a policy tool
- Involves kinetic, laser, and co-orbital systems.
- Threatens global communication, navigation, and military C2/ISR networks.
- Lack of comprehensive international regulatory framework.
- Kessler Syndrome is a major environmental risk from ASAT tests.
- Blurs lines between routine and counter-space operations.
| Year | Framing tags |
|---|---|
| 2025 | Multi-statement analysis, Factual recall |
| 2023 | Multi-statement analysis, Factual recall |
| 2022 | Multi-statement analysis, Conceptual understanding |
| 2018 | Multi-statement analysis, Factual recall |
| 2018 | Multi-statement analysis, Conceptual understanding |
| 2017 | Factual recall, Purpose or function of a policy tool |
| 2016 | Statement-based questions, Factual recall |
| 2014 | Multi-statement analysis, Factual recall |
Timeline
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International Relations
Conceptual area
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Science & Technology
Conceptual area
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Prelims 2014
Multi-statement analysis, Factual recall
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Prelims 2016
Statement-based questions, Factual recall
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Prelims 2017
Factual recall, Purpose or function of a policy tool
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Prelims 2018
Multi-statement analysis, Factual recall
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Prelims 2018
Multi-statement analysis, Conceptual understanding
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Prelims 2022
Multi-statement analysis, Conceptual understanding
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Prelims 2023
Multi-statement analysis, Factual recall
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Prelims 2025
Multi-statement analysis, Factual recall
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Orbital rivalry — the challenge of China’s space power
The weaponization of outer space involves the development and deployment of offensive capabilities to deny, disrupt, or destroy adversary space assets, posing significant threats to global security, critical infrastructure, and the long-term sustainability of space activities due to risks like Kessler Syndrome.
See also
No related topics linked yet.
Past papers
2014–2025 · 8 questions
In the news
Orbital rivalry — the challenge of China’s space power
The weaponization of outer space involves the development and deployment of offensive capabilities to deny, disrupt, or destroy adversary space assets, posing significant threats to global security, critical infrastructure, and the long-term sustainability of space activities due to risks like Kessler Syndrome.
Try these PYQs
What is the purpose of ‘evolved Laser Interferometer Space Antenna (eLISA)’ project?
Gravitational waves are ripples in the fabric of spacetime, predicted by Einstein's theory of general relativity. eLISA is a space-based gravitational wave observatory that can detect and study these gravitational waves. It is a joint project of the European Space Agency (ESA) and the National Aeronautics and Space Administration (NASA). eLISA is designed to detect gravitational waves from astronomical sources such as merging black holes and neutron stars. It would use laser interferometry to measure the tiny distortions in spacetime caused by passing gravitational waves. Detecting gravitational waves would provide important insights into the nature of gravity and the evolution of the universe.
With reference to ‘Astrosat’, the astronomical observatory launched by India, which of the following statements is/are correct?
1. Other than the USA and Russia, India is the only country to have launched a similar observatory into space.
2. Astrosat is a 2000 kg satellite placed in an orbit at 1650 km above the surface of the Earth.
Statement 1 is incorrect: AstroSat is India's first dedicated multi-wavelength space observatory aimed at studying celestial sources in X-ray, optical and UV spectral bands simultaneously. India is the 5th country to join the space observatory elite list after the USA, Russia, Japan, and Europe. Statement 2 is incorrect: AstroSat with a lift-off mass of about 1513 kg was launched into a 650 km orbit inclined at an angle of 6 degrees to the equator by PSLV-C30. Therefore, option D is the correct answer.
Which of the following pair is/are correctly matched?
|Spacecraft|Purpose|
|-- |--|
|1. Cassini-Huygens | Orbiting Venus and transmitting data to the Earth|
|2. Messenger|Mapping and investigating the Mercury|
|3. Voyager 1 and 2 | Exploring the outer solar system|
Select the correct answer using the code given below.
Pair 1 is incorrectly matched: The Cassini-Huygens mission was a joint NASA/ESA/ASI mission to study the planet Saturn and its system of rings and moons. The Huygens probe successfully landed on Saturn's largest moon, Titan. Pair 2 is correctly matched: The MESSENGER (MErcury Surface, Space ENvironment, GEochemistry, and Ranging) was a NASA spacecraft that orbited the planet Mercury from 2011 to 2015, studying its chemical composition, geology, and magnetic field. Pair 3 is correctly matched: These twin NASA spacecraft were launched in 1977 to conduct a "Grand Tour" of the outer planets. They provided detailed images and data on Jupiter, Saturn, Uranus, and Neptune and are now continuing their journey into interstellar space.
If a major solar storm (solar-flare) reaches the Earth, which of the following are the possible effects on the Earth?
1. GPS and navigation systems could fail.
2. Tsunamis could occur at equatorial regions.
3. Power grids could be damaged.
4. Intense auroras could occur over much of the Earth.
5. Forest fires could take place over much of the planet.
6. Orbits of the satellites could be disturbed.
7. Shortwave radio communication of the aircraft flying over polar regions could be interrupted.
Select the correct answer using the code given below:
Out of the listed effects of a major solar storm, the most likely ones are Statement 1 is correct. A solar storm can disrupt the Earth's ionosphere, which can affect the signal transmission of GPS and other radio-based navigation systems. Statement 3 is correct. Strong currents induced by the solar storm in power grids can damage transformers and cause widespread blackouts. Statement 4 is correct. Solar storms can energize particles in the Earth's magnetosphere, leading to spectacular auroras at lower latitudes than usual. Statement 6 is correct. The drag from a solar storm can alter the orbits of satellites, especially those in lower Earth orbit. Statement 7 is correct. Similar to GPS, radio communication can be affected by disturbances in the ionosphere. Statement 2 is incorrect. Tsunamis are caused by underwater earthquakes or volcanic eruptions, not solar storms. Statement 5 is incorrect. While a solar storm could potentially ignite some fires through electrical sparks, this is not a widespread effect. Therefore, codes 2 and 5 should not form the part of answer.
Consider the following space missions:
I. Axiom-4
II. SpaDeX
III. Gaganyaan
How many of the space missions given above encourage and support micro-gravity research?
✅ I. Axiom-4: Correct
Axiom-4 is a private crewed ISS mission focused on micro-gravity research through scientific experiments. ✅ II. SpaDeX: Correct
SpaDeX, ISRO’s autonomous docking tech demo, also supports micro-gravity research during its mission. ✅ III. Gaganyaan: Correct
India’s first human spaceflight, Gaganyaan, promotes micro-gravity research by enabling experiments in space. Therefore, all three missions support and encourage micro-gravity research.
Show 3 more PYQs
Consider the following pairs :
Objects in space: Description
1. Cepheids: Giant clouds of dust and gas in space
2. Nebulae: Stars which brighten and dim periodically
3. Pulsars: Neutron stars that are formed when massive stars run out of fuel and collapse
How many of the above pairs are correctly matched?
* Pair 1 is incorrect: Cepheids are actually stars that brighten and dim periodically, not giant clouds of dust and gas. * Pair 2 is incorrect: Nebulae are giant clouds of dust and gas in space, not stars that brighten and dim periodically. Thus, the first two pairs are reversed. * Pair 3 is correct: Pulsars are rapidly rotating neutron stars that are formed when massive stars exhaust their fuel and collapse. * So out of the 3 pairs given, only 1 pair (pair 3) is correctly matched.
Consider the following phenomena :
1. Light is affected by gravity.
2. The Universe is constantly expanding.
3. Matter warps its surrounding space-time.
Which of the above is/are the prediction/predictions of Albert Einstein's General Theory of Relativity, often discussed in media?
Statement 1 is correct: According to Einstein's General Theory of Relativity, gravity can bend light. This phenomenon is known as gravitational lensing. Statement 2 is correct: The General Theory of Relativity led to the prediction of an expanding universe, which has been confirmed by observational evidence. Statement 3 is correct: According to the General Theory of Relativity, the presence of matter and energy warps the fabric of space and time around it, which is the underlying cause of the gravitational force. So, all three statements are correct.
With reference to the Indian Regional Navigation Satellite System (IRNSS), consider the following statements :
1. IRNSS has three satellites in geostationary and four satellites in geosynchronous orbits.
2. IRNSS covers entire India and about 5500 sq. km beyond its borders.
3. India will have its own satellite navigation system with full global coverage by the middle of 2019.
Which of the statements given above is/are correct?
IRNSS is an independent regional navigation satellite system being developed by India. Statement 1 is correct: The Indian Regional Navigation Satellite System (IRNSS) indeed has three satellites in geostationary orbits and four satellites in geosynchronous orbits. Statement 2 is incorrect: It is designed to provide accurate position information service to users in India as well as the region extending up to 1500 km from its boundary, which is its primary service area. An Extended Service Area lies between primary service area and area enclosed by the rectangle from Latitude 30 deg South to 50 deg North, Longitude 30 deg East to 130 deg East. Statement 3 is incorrect: While India has been working on enhancing the coverage of its navigation system, as of the given timeframe (2019), it does not have full global coverage. The system is primarily regional, although there are plans for augmentation and expansion.