Space Agencies and Indian Missions: Chandrayaan, Mangalyaan and Aditya-L1
Space agencies are the organisations that build and launch satellites, probes and spacecraft. Examinations ask this topic through the founding year and headquarters of ISRO and NASA, the names and achievements of Indian missions, the launch vehicles and launch centres, and the record firsts of Chandrayaan, Mangalyaan and Aditya-L1. The facts are record-based and often repeated, so a clear list of missions with their year, aim and result makes this chapter very scoring.
ISRO and its work
The Indian Space Research Organisation (ISRO) was founded on 15 August 1969 and has its headquarters at Bengaluru. Its main launch centre is the Satish Dhawan Space Centre at Sriharikota in Andhra Pradesh. India's first satellite, Aryabhata, was launched in 1975. ISRO's launch vehicles include the SLV, ASLV, PSLV, GSLV, LVM3 and SSLV; the PSLV is called the workhorse of ISRO because of its many successful launches. ISRO is known around the world for completing missions at a low cost.
Chandrayaan missions
Chandrayaan-1 (2008) was India's first mission to the Moon. It carried the Moon Impact Probe and, most importantly, helped discover water molecules on the Moon. Chandrayaan-2 (2019) had an orbiter, the Vikram lander and the Pragyan rover; the orbiter worked well but the lander crashed on landing. Chandrayaan-3 (2023) succeeded completely: the Vikram lander made a soft landing near the lunar south pole on 23 August 2023, making India the fourth country to soft-land on the Moon and the first to land near the south pole. The landing site is named Shiv Shakti Point, and 23 August is now observed as National Space Day. The Pragyan rover studied the lunar soil during the mission.
Mangalyaan and Aditya-L1
The Mars Orbiter Mission (MOM), popularly called Mangalyaan, was launched in November 2013 and entered Mars orbit in September 2014. India thus became the first country to reach Mars orbit on its very first attempt and the first Asian nation to reach Mars orbit. Aditya-L1, launched in September 2023, is India's first dedicated solar observatory. It is placed at the Lagrange point L1, about 1.5 million kilometres from the Earth, from where it continuously studies the Sun's corona without any eclipse. Other important Indian satellites are AstroSat (2015), India's first dedicated astronomy satellite, XPoSat (2024) for X-ray polarimetry, and the communication and remote-sensing satellites of the INSAT, GSAT and IRS series.
NASA and other agencies
The National Aeronautics and Space Administration (NASA) of the United States was founded on 29 July 1958 and has its headquarters at Washington DC. Its famous missions include Apollo 11, which first landed humans on the Moon in 1969, the Voyager probes, the Hubble Space Telescope (1990), the James Webb Space Telescope (2021), the Mars rovers Curiosity and Perseverance, and the Artemis programme to return humans to the Moon. Other major space agencies are Roscosmos of Russia, the European Space Agency (ESA), the China National Space Administration (CNSA) and the Japan Aerospace Exploration Agency (JAXA). NISAR is a joint mission of NASA and ISRO.
Quick revision
Remember that ISRO was founded on 15 August 1969 with its headquarters in Bengaluru and its launch centre at Sriharikota, while NASA was founded on 29 July 1958 with its headquarters at Washington DC. India's first satellite was Aryabhata in 1975. Chandrayaan-1 (2008) found water on the Moon, Chandrayaan-3 (2023) soft-landed near the lunar south pole at Shiv Shakti Point, and 23 August is National Space Day. Mangalyaan reached Mars orbit in 2014 on India's first attempt, and Aditya-L1 studies the Sun from the L1 point about 1.5 million kilometres away. PSLV is the workhorse launch vehicle, and NISAR is a joint NASA-ISRO mission.
How to prepare this topic
- Fix the founding years and headquarters: ISRO 1969 Bengaluru, NASA 1958 Washington DC.
- Make a four-column table for each mission: name, year, aim and result, for Chandrayaan 1, 2 and 3, Mangalyaan and Aditya-L1.
- Learn the record firsts: first to Mars orbit on a maiden attempt, first to land near the lunar south pole, and first dedicated Indian solar observatory.
- Remember the launch centre Sriharikota and the workhorse launch vehicle PSLV.
- Keep the international agencies ready: Roscosmos, ESA, CNSA and JAXA, along with NISAR as a joint NASA-ISRO mission.
Common exam traps
- Chandrayaan-3, not Chandrayaan-2, made the successful soft landing; Chandrayaan-2's lander crashed.
- The landing site of Chandrayaan-3 is Shiv Shakti Point, and 23 August is National Space Day.
- Mangalyaan is the Mars Orbiter Mission, not a Moon mission, and it reached Mars orbit in 2014.
- Aditya-L1 is a solar mission placed at the L1 point, not a lunar or Mars mission.
- Aryabhata (1975) was India's first satellite, while Chandrayaan-3 was the first to land near the lunar south pole.
Frequently Asked Questions
When was ISRO founded and where is its headquarters and launch centre?
ISRO, the Indian Space Research Organisation, was founded on 15 August 1969 and has its headquarters at Bengaluru. Its main launch centre is the Satish Dhawan Space Centre at Sriharikota in Andhra Pradesh. India's first satellite, Aryabhata, was launched in 1975.
What did Chandrayaan-1, Chandrayaan-2 and Chandrayaan-3 achieve?
Chandrayaan-1 (2008) was India's first Moon mission and helped discover water molecules on the Moon. Chandrayaan-2 (2019) had an orbiter, lander and rover; the orbiter worked but the lander crashed. Chandrayaan-3 (2023) made a successful soft landing near the lunar south pole at Shiv Shakti Point, making India the first country to land near the south pole and the fourth to soft-land on the Moon.
What is Mangalyaan and what record did India set?
Mangalyaan, or the Mars Orbiter Mission, was launched in November 2013 and entered Mars orbit in September 2014. With it India became the first country to reach Mars orbit on its very first attempt and the first Asian nation to reach Mars orbit. The mission was noted for its low cost.
What is Aditya-L1?
Aditya-L1, launched in September 2023, is India's first dedicated solar observatory. It is placed at the Lagrange point L1, about 1.5 million kilometres from the Earth, from where it continuously observes the Sun's corona without the interruptions caused by eclipses or by the Earth's day and night cycle.
What are the major space agencies of the world and what is NISAR?
The major space agencies are NASA of the United States, founded on 29 July 1958 with headquarters at Washington DC; ISRO of India; Roscosmos of Russia; ESA of Europe; CNSA of China; and JAXA of Japan. NISAR is a joint mission of NASA and ISRO for Earth observation using radar.