With more and more missions planned for the Moon, Mars, and even asteroids, NASA continues to lead the way in exploring deep space. Its work influences how countries around the world think about space, how we discuss environmental issues, and it inspires people to study and learn more – making NASA a fascinating topic from many different angles. In this article, we will learn about the STS-118 Endeavour ISS Assembly S5 Truss mission which will explore more about International Space Station (ISS), capturing vital data that will support future exploration, human habitation, or satellite operations.

• STS-118 Endeavour ISS Assembly S5 Truss was launched on August 8, 2007, marking a significant step forward in space exploration.  
• The stated objective for this mission is to Deliver S5 Truss, SPACEHAB module, external stowage platform. This central aim has guided every phase of its development, from instrument selection to operational planning.  
• This flight is recognized as a Crewed ISS assembly and logistics flight (13A1), highlighting its overall importance and contribution.  
• The huge size and complicated nature of the Space Shuttle (Endeavour OV-105) amazed everyone who got a close look at it. 
• Kennedy Space Center, LC-39A served as the launch site for this important space mission. 
• Its total duration was 12 days, 17 hours, 55 minutes, 34 seconds. 
• This effort was undertaken solely by NASA. 
• The mission was classified as Completed (Successful) upon completion. 

NASA’s STS-118 Endeavour ISS Assembly S5 Truss includes S5 Truss, Spacehab-ULSM, ESP-3, designed to improve navigation, data collection, and environmental monitoring.

To achieve autonomy objectives, STS-118 Endeavour ISS Assembly S5 Truss integrated First flight of an Educator Astronaut (Barbara Morgan), advancing NASA’s capabilities in onboard processing and intelligent control systems. In this article, lets understand more about Objectives, Key Technologies Used and Commercial Involvement Faced in NASAs STS-118 Endeavour ISS Assembly S5 Truss which is useful in UPSC Prelims & UPSC Mains Papers.

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NASA STS-118 Endeavour ISS Assembly S5 Truss Space Mission Overview 

Also, Checkout Sunita Williams’ Missions to the International Space Station

STS-118 Endeavour ISS Assembly S5 Truss Space Mission Global Contributions

STS-118 Endeavour ISS Assembly S5 Truss was jointly executed with ISS partners, promoting shared research in autonomous and remote space systems.

• Key contributors such as Spacehab, Inc provided essential technologies and services that helped accelerate the mission timeline. 
• STS-118 Endeavour ISS Assembly S5 Truss had a significant impact on global space policy as Continued ISS construction; high public interest (Educator Astronaut), influencing international collaboration and setting new standards for space exploration. 

Challenges & Risk in STS-118 Endeavour ISS Assembly S5 Truss Space Mission

During various mission phases, STS-118 Endeavour ISS Assembly S5 Truss had to manage risks like Small gouge in heat shield tiles from ascent debris, which were resolved through creative engineering solutions and the application of redundant safety mechanisms.

• Four EVAs; tile damage on Endeavour's belly (deemed safe) posed a potential mission-limiting condition, but proactive mitigation ensured continued operation of STS-118 Endeavour ISS Assembly S5 Truss. 

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Mission Timeline of STS-118 Endeavour ISS Assembly S5 Truss NASA Space Mission

• The NASA space mission successfully completed its landing/flyby on August 21, 2007 (Landing at KSC), marking a key achievement in space exploration. 
• The NASA space mission reached the end of its primary phase on August 21, 2007, successfully completing all planned objectives. 

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UPSC Relevance of STS-118 Endeavour ISS Assembly S5 Truss

• NASA’s recent explorations and technological feats are directly relevant to the science and tech portion of the UPSC Prelims exam.
• In GS Paper 3, NASA missions serve as examples to explain concepts such as innovation, sustainability, and the ethical use of advanced technologies.
• GS Paper 4 of the UPSC IAS Exam could present ethical dilemmas regarding public spending on high-risk scientific missions, using NASA’s funding strategies to evaluate responsible resource use.
• From the use of satellite imagery in remote sensing (Geography) to space-based diplomacy (PSIR) and organizational leadership in mission planning (Public Administration), NASA missions support diverse analytical frameworks across optional papers.

Also, Learn about International Space Station (ISS)

Past UPCS Mains PYQs on NASA Space Missions

Q1. Launched on 25th December 2021, the James Webb Space Telescope has been much in the news since then. What are its unique features which make it superior to its predecessor space telescopes? What are the key goals of this mission? What potential benefits does it hold for the human race? (2022, GS Paper 3) 

Q2. How does the Juno Mission of NASA help to understand the origin and evolution of the Earth? (2017, GS Paper 1)

Q3. The safe landing of the ‘Curiosity’ Rover under NASA’s space programme has sparked many possibilities. What are those and how could humankind benefit from them? (2012, GS Paper 2)

Past UPCS Prelims PYQs on NASA Space Missions

Q1 [2022]: Which one of the following statements best reflects the idea behind the “Fractional Orbital Bombardment System” often talked about in the media?

(a) A hypersonic missile is launched into space to counter the asteroid approaching the Earth and explode it in space.

(b) A spacecraft lands on another planet after making several orbital motions.

(c) A missile is put into a stable orbit around the Earth and deorbits over a target on the Earth.

(d) A spacecraft moves along a comet with the same speed and places a probe on its surface.

Answer: (c) A missile is put into a stable orbit around the Earth and deorbits over a target on the Earth.

Explanation: While this question pertains to a military concept, NASAs research into orbital mechanics and space trajectories contributes to the broader understanding of such technologies.

Q2 [2020]: “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:

(a) Voyager-2

(b) New Horizons

(c) Lisa Pathfinder

(d) Evolved LISA

Answer: (d) Evolved LISA

Explanation: Evolved LISA (Laser Interferometer Space Antenna) is a space-based gravitational wave observatory developed by ESA with contributions from NASA.

Q3 [2017]: What is the purpose of ‘evolved Laser Interferometer Space Antenna (eLISA)’ project?

(a) To detect neutrinos

(b) To detect gravitational waves

(c) To detect the effectiveness of missile defence system

(d) To study the effect of solar flares on our communication systems

Answer: (b) To detect gravitational waves

Explanation: Evolved Laser Space Interferometer Space Antenna (ELISA) project was widely in the news due to the discovery of gravitational waves by the LIGO detector and the subsequent success of the LISA pathfinder project. The European Space Agency is leading the ELISA mission. The project is initiated to detect and accurately measure gravitational waves.

Q4 [2016]: What is ‘Greased Lightning-10 (GL-10)’, recently in the news?

(a) Electric plane tested by NASA

(b) Solar-powered two-seater aircraft designed by Japan

(c) Space observatory launched by China

(d) Reusable rocket designed by ISRO

Answer: (a) Electric plane tested by NASA
educationprovince.com

Explanation: GL-10 is a remotely piloted plane similar to an Unmanned Aerial Vehicle (UAV). It is designed and developed in such a way that it can take off like a helicopter and fly like an airplane. It is a battery-powered 10-engine with a wingspan of 3.05 meters. Eight electric motors are mounted on the wings. 2 electric motors are mounted on the tail. It weighs a maximum of 28.1 kilograms at takeoff. Due to its versatile vertical takeoff and landing ability, it produces less noise. It can be used as a UAV for small package delivery or vertical takeoff and landing, as well as long-endurance surveillance for agriculture, mapping, and other applications. Its modified scaled-up version can be used as a persons air vehicle.

Q5 [2015]: The term ‘Goldilocks Zone’ is often seen in the news in the context of:

(a) The limits of habitable zone above the surface of the Earth

(b) Regions inside the Earth where shale gas is available

(c) Search for the Earth-like planets in outer space

(d) Search for meteorites containing precious metals

Answer: (c) Search for the Earth-like planets in outer space

Explanation: The Goldilocks Zone is the livable zone around a star where the temperature is not too hot and not too cold for liquid water to exist on a planet. It is a metaphor for the childrens story Goldilocks and the Three Bears, in which a young girl selects from sets of three objects, eschewing the extremes (such as those that are enormous or small, hot or cold) and fixing on the one that is just right in the middle. The Goldilocks zone of the Sun surrounds the Earth. All of Earths water would freeze if it were found where the dwarf planet Pluto is; however, all of Earths water would boil out if it were found where Mercury is.

Also, Get to Know What was NASA's Parker Solar Probe Mission

UPSC Practice Questions on NASA Space Missions

Q1. On October 19, 2017, which space agency has approved second extension of its Dawn Mission at Ceres Dwarf planet?
1. Space X
2. NASA
3. ISRO
4. CNSA
Answer: 2
Solution: NASA has approved the second extension of its Dawn mission at Ceres dwarf planet on October 19, 2017. Dawn was a space probe launched by NASA in 2007. It was designed to study two protoplanets in the asteroid belt, Vesta and Ceres. It exhausted all of its hydrazine fuel and retired in 2018. The Dawn mission was managed by Jet propulsion laboratory. Currently, the spacecraft was placed in an uncontrolled orbit around Ceres. Indian Space Research Organisation ISRO is the space agency of India. National Aeronautics and Space NASA is an independent space agency of the United States. Space X is an American aerospace manufacturer and space transportation services company. China National Space Administration CNSA is the space agency of China.

Q2. Which one of the following belongs to India's inter-planetary mission?
1. SARAL
2. Jugnu
3. Mangalyaan
4. ANUSAT
Answer: 3
Solution: The Mars Orbiter Mission MOM or Mangalyaan is a space probe launched on November 5, 2013 by the Indian Space Research Organization. The mission made India the first Asian nation and the fourth in the world to reach the planet, after Roscosmos, NASA, and the European Space Agency. ISRO chairman is S. Somnath. ISRO spent 75 million dollars to launch the mission.

Q3. Consider the following statements about Deep Ocean Mission:
A) This mission was launched by DRDO and NASA.
B) The mission proposes to explore the deep ocean similar to space exploration.
C) One of the main aims of the mission is to explore and extract Polymetallic nodules.
Choose the correct statement.
1. A and B
2. B and C
3. Only A
4. A, B, C
Answer: 2
Solution: The mission proposes to explore the deep ocean similar to the space exploration started by ISRO. The nodal agency for this mission is the Ministry of Earth Sciences MoES. Underwater robotics and manned submersibles are key components of the Mission which will help India harness various living and non-living resources from the seabed and deep water. Hence Statement A is Incorrect and B is Correct. The tasks that will be undertaken over this period include deep-sea mining, survey, energy exploration and the offshore-based desalination. These technological developments are funded under an umbrella scheme of the government called Ocean Services, Technology, Observations, Resources Modelling and Science O-SMART. One of the main aims of the mission is to explore and extract polymetallic nodules PMN. These are small potato-like rounded accretions composed of minerals such as manganese, nickel, cobalt, copper and iron hydroxide. Hence Statement C is Correct. These metals can be extracted and used in electronic devices, smartphones, batteries and even for solar panels. The International Seabed Authority ISA, an autonomous international organisation established under the 1982 United Nations Convention on the Law of the Sea, allots the area for deep-sea mining.

Q4. Consider the following statements regarding Synthetic Aperture Radar or SAR:
1. A Synthetic Aperture Radar SAR or SAR is a coherent mostly airborne or space-borne side-looking radar system that utilizes the flight path of the platform to simulate an extremely large antenna, and that generates high-resolution remote sensing imagery.
2. ISRO has completed the development of a Synthetic Aperture Radar capable of producing high-resolution images for a joint earth observation satellite mission with the Russian space agency.
Which of the statements given above is/are correct?
1. 1 only
2. 2 only
3. Both 1 and 2
4. Neither 1 nor 2
Answer: 1
Solution: A Synthetic Aperture Radar SAR or SAR is a coherent mostly airborne or space-borne side-looking radar system that utilizes the flight path of the platform to simulate an extremely large antenna, and that generates high-resolution remote sensing imagery. Hence statement 1 is correct. ISRO has completed the development of a Synthetic Aperture Radar capable of producing high-resolution images for a joint earth observation satellite mission with the U.S. space agency NASA. Hence statement 2 is not correct.

Q5. Which space organization successfully created a New World Record by launching 143 Satellites in a single mission?
1. ISRO
2. NASA
3. SpaceX
4. CNSA
Answer: 3
Solution: SpaceX successfully created a New World Record by launching 143 Satellites in a single mission. The satellites were launched using the Falcon 9 Reusable rockets from the Cape Canaveral Space Force Station in Florida, United States of America. With this, SpaceX bettered the Indian Space Research Organization's ISRO record of deploying 104 satellites in a single mission in February 2017. The Launch is also the first dedicated mission for SpaceX under SmallSat Rideshare program called Transporter-1. With the launch of the satellites, SpaceX is planning to provide Global broadband internet coverage by 2021. Out of 143 satellites, 133 were Commercial and Government CubeSats, microsats, and 10 were Starlink satellites.

Q6. Which of the following statement(s) is/are incorrect with reference to the Cassini Mission?
1. It is a cooperation mission between the National Aeronautics and Space Administration NASA and the Japanese Space Agency to study the atmosphere of planet Saturn.
2. Huygens is a lander that landed on Titan, one of Saturn's moons, in 2005.
3. It is the first space probe to visit Saturn.
Select the correct codes from below -
1. 1 and 2 only
2. 3 only
3. 1 and 3 only
4. None of the above
Answer: 1
Solution: Statement 1 is incorrect: Launched in 1997, the Cassini mission is a cooperation mission between NASA, the European Space Agency, and the Italian Space Agency. The spacecraft was launched on October 15, 1997. This was the first landing ever accomplished in the outer Solar System. Statement 2 is correct: Cassini–Huygens is an unmanned spacecraft sent to the planet Saturn. The lander, called Huygens, landed on Titan in 2005. Statement 3 is incorrect: Cassini is the fourth space probe to visit Saturn and the first to enter orbit. Its design includes a Saturn orbiter and a lander for the moon Titan.

Q7. Spacecraft, Near-Earth Asteroid Scout or NEA Scout is related to which of the following space organization?
1. National Aeronautics and Space Administration
2. Indian Space Research Organisation
3. European Space Agency
4. Japan Aerospace Exploration Agency
Answer: 1
Solution: Recently, the National Aeronautics and Space Administration NASA has announced that its new spacecraft, named Near-Earth Asteroid Scout or NEA Scout, has completed all required tests and has been safely tucked inside the Space Launch System SLS rocket. NEA Scout is a miniaturized spacecraft, known as a CubeSat, developed under NASA's Advanced Exploration Systems AES Program. AES pioneers new approaches for rapidly developing prototype systems, demonstrating key capabilities, and validating operational concepts for future human missions beyond low-Earth orbit. Its main mission is to fly by and collect data from a near-Earth asteroid. It will take about two years to cruise to the asteroid and will be about 93 million miles away from Earth during the asteroid encounter. It will also be America's first interplanetary mission using special solar sail propulsion. So far, spacecraft have been using solar energy to power them and execute critical functions. This will be the first time that a spacecraft uses it as wind to generate thrust and move forward. It is one of several payloads that will hitch a ride on Artemis I, which is expected to be launched in November 2021. Artemis I will be an uncrewed test flight of the Orion spacecraft and SLS rocket. It is the first in a series of increasingly complex missions that will enable human exploration to the Moon and Mars. NEA Scout launches to the Moon in 2021 with a fleet of other small satellites aboard Artemis 1. At the Moon, NEA Scout will deploy its 86-square-meter solar sail and slowly spiral out of lunar orbit. It will travel to a near-Earth asteroid and perform a slow fly-by, capturing up-close images of the surface.

Q8. Which company developed New Shepard launch system, which got flying approval recently?
1. Boeing
2. Blue Origin
3. SpaceX
4. Virgin Galactic
Answer: 2
Solution: Blue Origin, the private spaceflight company of Jeff Bezos, has successfully launched and landed its New Shepard vehicle on its latest mission NS-14. The founder of Blue Origin is Jeff Bezos. Blue Origin is a private space company headquartered in Kent, Washington USA. Blue origin plans to send an astronaut on the moon with NASA's Artemis Program.

Q9. Which space company has been selected by NASA to deliver cargo, experiments and other supplies to the agency's Gateway in lunar orbit?
1. Dragon-XL
2. Blue origin
3. Astra space
4. Space X
Answer: 4
Solution: NASA has selected SpaceX of Hawthorne, California, as the first U.S. commercial provider under the Gateway Logistics Services contract to deliver cargo, science experiments, and other supplies to the agency's Gateway in lunar orbit. The award is a significant step forward for NASA's Artemis program that will land the first woman and next man on the moon by 2024 and build a sustainable human lunar presence. At the Moon, NASA and its partners will gain the experience necessary to mount a historic human mission to Mars.

Q10. Elon Musk's rocket company SpaceX launched ________ more astronauts on a flight to the International Space Station ISS for NASA on 27 April 2022.
1. 3
2. 4
3. 5
4. 6
Answer: 4
Solution: Elon Musk's rocket company SpaceX launched four more astronauts on a flight to the International Space Station ISS for NASA on 27 April 2022. The SpaceX launch vehicle, consisting of a two-stage Falcon 9 rocket topped with a Crew Dragon capsule dubbed Freedom, lifted off from Florida. The crew will begin a six-month science mission orbiting some 250 miles 420 km above Earth. The crew includes a medical doctor turned spacewalker and a geologist specializing in Martian landslides. The mission, designated Crew 4, is the fourth full-fledged ISS crew NASA has launched aboard a SpaceX vehicle since the private rocket venture founded by Musk began flying U.S. space agency astronauts in 2020. The Crew 4 team will be welcomed aboard by the seven existing ISS occupants, including the four Crew 3 members they will be replacing - three Americans and a German ESA crewmate due to end their mission in early May - and three Russian cosmonauts.

Also, Read about Axiom 4 Mission (Ax-4) for UPSC