International Lunar Exploration Programs
Science & Technology
- PYQs8
- Articles1
Background
This concept is crucial for UPSC due to its geopolitical implications, showcasing international competition and potential cooperation in space. It highlights technological advancements, the strategic importance of lunar resources, and the future trajectory of human space exploration, impacting global power dynamics and scientific progress.
Lunar exploration programs involve national and international efforts to send robotic and crewed missions to the Moon, driven by scientific curiosity, resource potential, and geopolitical competition. These programs aim to establish a sustained human presence on the Moon as a stepping stone for deeper space exploration.
Facts & tables
- China's Lunar Goal
- Crewed moon landing by 2030, permanent base by 2035 (with Russia).
- U.S. (NASA) Lunar Goal
- Crewed moon landing by 2028 (Artemis program), long-term lunar presence for Mars exploration.
- Geopolitical Competition
- U.S. warns about China's alleged plans to colonize and mine lunar territory and resources.
- Recent Milestones
- NASA's Artemis II (crewed lunar flyby); China's robotic recovery of lunar samples from the far side.
| Nation/Agency | Crewed Moon Landing Target | Long-term Goal |
|---|---|---|
| China | 2030 | Permanent base by 2035 (with Russia) |
| U.S. (NASA) | 2028 (Artemis) | Long-term lunar presence for Mars exploration |
| Type | Reference |
|---|---|
| Conceptual area | Geopolitics & International Conflicts |
| Conceptual area | Space Science & Exploration |
| Body | Role |
|---|---|
| China Manned Space Agency (CMSA) | Implements |
| NASA | Implements |
| SpaceX | Implements |
Prelims angle
Prelims angle: Statement-based questions
Prelims angle: Factual recall
- China targets crewed moon landing by 2030, permanent base by 2035.
- U.S. (Artemis) aims for crewed moon landing by 2028.
- Geopolitical competition over lunar resources is a key aspect.
- Key players include CMSA, NASA, and SpaceX.
- Lunar exploration serves as a stepping stone for Mars missions.
| Year | Framing tags |
|---|---|
| 2025 | Multi-statement analysis, Factual recall |
| 2024 | Statement-based questions, Conceptual understanding |
| 2023 | Multi-statement analysis, Factual recall |
| 2022 | Multi-statement analysis, Conceptual understanding |
| 2018 | Multi-statement analysis, Conceptual understanding |
| 2018 | Statement-based questions, Factual recall |
| 2017 | Factual recall, Purpose or function of a policy tool |
| 2016 | Statement-based questions, Factual recall |
Timeline
-
Geopolitics & International Conflicts
Conceptual area
-
Space Science & Exploration
Conceptual area
-
Prelims 2016
Statement-based questions, Factual recall
-
Prelims 2017
Factual recall, Purpose or function of a policy tool
-
Prelims 2018
Multi-statement analysis, Conceptual understanding
-
Prelims 2018
Statement-based questions, Factual recall
-
Prelims 2022
Multi-statement analysis, Conceptual understanding
-
Prelims 2023
Multi-statement analysis, Factual recall
-
Prelims 2024
Statement-based questions, Conceptual understanding
-
Prelims 2025
Multi-statement analysis, Factual recall
-
China to send astronaut on year-long space mission as it eyes 2030 moon landing
The article highlights the accelerating international race for lunar exploration, primarily between China and the U.S., with both nations aiming for crewed moon landings by 2030 and 2028 respectively, and plans for permanent lunar bases, raising geopolitical concerns over resource control.
See also
Past papers
2016–2025 · 8 questions
In the news
China to send astronaut on year-long space mission as it eyes 2030 moon landing
The article highlights the accelerating international race for lunar exploration, primarily between China and the U.S., with both nations aiming for crewed moon landings by 2030 and 2028 respectively, and plans for permanent lunar bases, raising geopolitical concerns over resource control.
Try these PYQs
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.
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.
With reference to India’s satellite launch vehicles, consider the following statements:
1. PSLVs launch the satellites useful for Earth resources monitoring whereas GSLVs are designed mainly to launch communication satellites.
2. Satellites launched by PSLV appear to remain permanently fixed in the same position in the sky, as viewed from a particular location on Earth.
3. GSLV Mk III is a four-stage launch vehicle with the first and third stages using solid rocket motors, and the second and fourth stages using liquid rocket engines.
Which of the statements given above is/are correct?
Statement 1 is correct. PSLV (Polar Satellite Launch Vehicle) is primarily used to launch Earth observation/monitoring satellites, while GSLV (Geosynchronous Satellite Launch Vehicle) is designed to launch communication satellites into geosynchronous transfer orbits. Statement 2 is incorrect. Satellites launched by PSLV are typically placed in polar or sun-synchronous orbits, which are not geosynchronous. These satellites appear to move across the sky as viewed from a particular location on Earth. Statement 3 is incorrect. The GSLV Mk III is a three-stage launch vehicle, not a four-stage one. The first stage uses solid rocket motors, the second stage uses liquid rocket engines, and the third stage uses a cryogenic rocket engine.
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 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.
Show 3 more PYQs
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.
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 radioisotope thermoelectric generators (RTGs), consider the following statements:
1. RTGs are miniature fission reactors.
2. RTGs are used for powering the onboard systems of spacecrafts.
3. RTGs can use Plutonium-238, which is a by-product of weapons development.
Which of the statements given above are correct?
* Statement 1: Incorrect. RTGs (Radioisotope Thermoelectric Generators) are not miniature fission reactors. Fission reactors use nuclear fission, a process of splitting atoms to release a tremendous amount of energy. RTGs, on the other hand, utilize the natural radioactive decay of isotopes to generate heat, which is then converted to electricity through a process called thermoelectricity. * Statement 2: Correct. RTGs are indeed a reliable power source for spacecraft, especially those venturing far from the sun where solar panels become ineffective. They provide consistent, low-level electric power for extended periods, making them ideal for probes, satellites, and rovers in deep space. * Statement 3: Correct. Plutonium-238 is a common isotope used in RTGs due to its long half-life (the time it takes for half of the material to decay) and its ability to generate a steady heat output from its decay process. While it can be a byproduct of weapons development, there are also alternative ways to produce Plutonium-238 specifically for peaceful applications like RTGs.