Human Spaceflight Challenges & Research
Science & Technology
- PYQs8
- Articles1
Background
This concept is vital for UPSC as it addresses the scientific and technological frontiers of human survival in extreme environments. It covers advancements in space medicine, understanding human limits, and the ethical considerations of biological experiments in space, all crucial for future deep-space missions and potential colonization.
Human spaceflight involves sending astronauts into space, facing significant physiological and psychological challenges due to microgravity, radiation, and isolation. Research in this area focuses on understanding and mitigating these effects to enable longer-duration missions and future space colonization.
Facts & tables
- Longest Chinese Mission
- China's Shenzhou-23 will send an astronaut for a year, a record duration for the country.
- Physiological Studies
- Research on radiation exposure, bone density loss, and psychological stress in space.
- Artificial Embryo Experiment
- Conducted on Tiangong to study long-term human residence, survival, and reproduction in space.
- Mission Transition Risks
- Astronauts transitioning from low-Earth orbit (Tiangong) to the Moon's surface face higher risks.
| Type | Reference |
|---|---|
| Conceptual area | Space Science & Exploration |
| Conceptual area | Biotechnology & Genetic Engineering |
| Body | Role |
|---|---|
| China Manned Space Agency (CMSA) | Implements |
Prelims angle
Prelims angle: Multi-statement analysis
Prelims angle: Factual recall
- Long-duration missions study human physiology in space.
- Key challenges include microgravity, radiation, and psychological stress.
- Research areas cover bone density loss and radiation exposure.
- The 'artificial embryo' experiment explores human reproduction in space.
- Such research enables future deep-space travel and colonization.
| Year | Framing tags |
|---|---|
| 2025 | Multi-statement analysis, Factual recall |
| 2023 | Multi-statement analysis, Factual recall |
| 2020 | Factual recall, Conceptual understanding |
| 2018 | Multi-statement analysis, Conceptual understanding |
| 2018 | Multi-statement analysis, Factual recall |
| 2017 | Factual recall, Purpose or function of a policy tool |
| 2016 | Statement-based questions, Factual recall |
| 2016 | Multi-statement analysis, Factual recall |
Timeline
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Space Science & Exploration
Conceptual area
-
Biotechnology & Genetic Engineering
Conceptual area
-
Prelims 2016
Statement-based questions, Factual recall
-
Prelims 2016
Multi-statement analysis, Factual recall
-
Prelims 2017
Factual recall, Purpose or function of a policy tool
-
Prelims 2018
Multi-statement analysis, Conceptual understanding
-
Prelims 2018
Multi-statement analysis, Factual recall
-
Prelims 2020
Factual recall, Conceptual understanding
-
Prelims 2023
Multi-statement analysis, Factual recall
-
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 scientific focus of long-duration human space missions, exemplified by China's year-long stay on Tiangong, which aims to study physiological effects like radiation exposure and bone density loss, and conduct experiments like the 'artificial embryo' to understand human survival and reproduction in space.
See also
Past papers
2016–2025 · 6 questions
In the news
China to send astronaut on year-long space mission as it eyes 2030 moon landing
The article highlights the scientific focus of long-duration human space missions, exemplified by China's year-long stay on Tiangong, which aims to study physiological effects like radiation exposure and bone density loss, and conduct experiments like the 'artificial embryo' to understand human survival and reproduction in space.
Try these PYQs
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 ‘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 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.
In which of the following areas can GPS technology be used?
1. Mobile phone operations
2. Banking operations
3. Controlling the power grids
Select the correct answer using the code given below:
GPS, or Global Positioning System, is a satellite-based navigation system that provides geolocation and time information to a GPS receiver anywhere on or near the Earth. It has a wide range of applications. Statement 1 is correct. GPS is used in mobile phones for various purposes such as location tracking, navigation, and location-based services. Statement 2 is correct. GPS is used in banking operations for ATM location services and for time-stamping transactions, which is crucial for maintaining accurate records. Statement 3 is correct. GPS is used for time-stamping power system measurements, which is vital for grid stability and synchronization. Therefore, GPS technology can be used in all the three areas mentioned.
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
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.
Consider the following statements regarding: The Mangalyaan launched by ISRO
1. is also called the Mars Orbiter Mission
2. made India the second country to have a spacecraft orbit the Mars after USA
3. made India the only country to be successful in making its spacecraft orbit the Mars in its very first attempt
Which of the statements given above is/are correct?
Statement 1 is correct: Mangalyaan is also called the Mars Orbiter Mission (MOM). This was its official designation. Statement 2 is incorrect: India was not the second country to orbit Mars. Several countries had successfully sent spacecraft to Mars before Mangalyaan, including the USA, Russia, and the European Space Agency (ESA). Statement 3 is correct: India was indeed the only country at that time to succeed in placing a spacecraft into Martian orbit on its very first attempt. This was a significant achievement for ISRO. Hence, option C is the correct answer.
“The experiment will employ a trio of spacecraft flying in formation in the shape of an equilateral triangle that has sides one million kilometres long, with lasers shining between the craft”. The experiment in question refers to
The description mentions three spacecraft in an equilateral triangle formation with million-kilometre sides using lasers for measurement.
This matches the design of the Evolved Laser Interferometer Space Antenna (eLISA) mission.
eLISA is a proposed space observatory aiming to detect gravitational waves using precisely positioned spacecraft. Voyager-2 and New Horizons are single spacecraft on exploration missions, not designed for gravitational wave detection. LISA Pathfinder was a precursor mission to test technologies for eLISA, not the full mission itself. Therefore, based on the details provided, the experiment refers to the Evolved LISA mission.