Wednesday, 12 February 2025

ISRO 100: From Aryabhata to Chandrayaan and Beyond

Reeling back to our childhood, all of us could only wonder what could be beyond those shiny little stars and moon that we see up in the sky right? Who knew this same inquisitiveness that once resided in all of us, will become a passion for a small kid from Ahmedabad, who will later be known as the "Father of the Indian Space Program" : Dr Vikram Sarabhai. This spark of passion later on August 15 1969 ignited a flame called the Indian Space Research Organization (ISRO).

Source: Wikipedia

India's space journey is a remarkable tale of perseverance, innovation, and scientific excellence. From launching its first satellite Aryabhata in 1975 to the historic success of Chandrayaan and much more, the Indian Space Research Organization (ISRO) has carved a stand for itself in the global space community.


The Beginning: Aryabhata (1975)

India’s space dream took flight on April 19, 1975, with the launch of Aryabhata, the country’s first satellite. Named after the ancient Indian mathematician and astronomer, Aryabhata was built to conduct scientific experiments in X-ray astronomy, solar physics, and aeronomy. Though it functioned for just a few days due to a power failure, it marked India's entry into the Age of Space.

Source: https://www.csre.iitb.ac.in/isro/aryabhata.html


The Magnification: SLV, PSLV, and GSLV

After Aryabhata, India focused on developing its own launch capabilities:

SLV (Satellite Launch Vehicle): In 1979, India launched "Rohini Satellite" using SLV-3, making it one of the few nations with indigenous launch capability.

Source: Wikipedia

PSLV (Polar Satellite Launch Vehicle): Introduced in the 1990s, PSLV became ISRO’s workhorse, successfully launching satellites for India and other countries.

Source: Wikipedia

GSLV (Geosynchronous Satellite Launch Vehicle): With the addition of cryogenic engine technology, GSLV enabled India to launch heavier satellites, crucial for deep space missions.

Source: https://www.isro.gov.in/GSLVmk3_CON.html


India's Lunar Leap

Chandrayaan-1 (2008)

India’s first moon mission, Chandrayaan-1, was a game-changer in lunar exploration. Launched in 2008, it made a groundbreaking discovery—the presence of water molecules on the Moon’s surface, altering our understanding of the lunar environment. Chandrayaan-1's discoveries advanced scientific knowledge and inspired young Indians to pursue careers in science and technology.
Source: https://www.ndtv.com/india-news/

Chandrayaan-2 (2019)

Taking lunar exploration further, Chandrayaan-2 aimed for a soft landing on the Moon’s south pole. While the Vikram lander lost communication, the orbiter still continues to send valuable data, contributing to future missions.
Source: Wikipedia


Chandrayaan-3 (2023): India’s Triumph

In 2023, Chandrayaan-3 made history by becoming the first mission to land near the Moon’s south pole. This success positioned India among the elite group of lunar explorers and showcased ISRO’s technological prowess.
Source: https://science.nasa.gov/mission/chandrayaan-3/



 The Moon and Beyond

Mangalyaan (2013): The Mars Orbiter Mission (MOM)

India achieved another milestone in 2013 by launching Mangalyaan, its first interplanetary mission to Mars. It made India the first country to reach Mars on its first attempt and the fourth space agency to do so. The mission also set a milestone for its cost-effectiveness, inspiring global admiration and respect.
Source: Wikipedia


Aditya-L1: India’s Sun Mission (2023)

In 2023, ISRO launched Aditya-L1, India's first solar mission, to study the Sun’s outer layers and its impact on space weather. Positioned at Lagrange Point 1 (L1), it continues to provide crucial solar data.
Source: https://www.newindianexpress.com/editorials/2024/Jul/03/the-world-awaits-data-from-aditya-l1


Gaganyaan: India's Human Spaceflight Mission (Upcoming)

India is now preparing for Gaganyaan, its first crewed space mission, aiming to send Indian astronauts (Gagannauts) to low Earth orbit. This ambitious project is set to elevate India's status in human spaceflight.
Source: https://www.loksatta.com/tech/


The Road Ahead: Future Space Exploration

ISRO is actively working on:

Shukrayaan-1 – A mission to Venus to explore its thick atmosphere.

Lunar and Mars Exploration – Plans for Chandrayaan-4 and Mangalyaan-2.

Private Sector Involvement – Collaborations with startups for satellite and launch vehicle development.


From Aryabhata to Chandrayaan-3 and beyond, India's space journey is a testament to its scientific and visionary leadership. With each mission, ISRO continues to push boundaries, making space exploration affordable, accessible, and impactful. As the nation sets its sights on interplanetary missions and human spaceflight, India’s space odyssey is just getting started!

Towards the Stars and Beyond! 🚀 Jai Hind!





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