As the midnight sky adorned with stars ignites our curiosity, the realm of space has captivated humanity for centuries. Over the past decade, India’s contributions to the domain of space technology have not only elevated its own capabilities but have also etched an enduring imprint on the global stage.
My interest in space began when I was a child and used to gaze at the sky above me but, Indian interest in astronomy dates back to the 5th century CE. It has been a great benefit to the field of classical studies when learned people like Aryabhata, Brahmagupta, and Varahamihira wrote their historic texts, such as: Aryabhatiya, Brahmasphutasiddhanta, Surya Siddhanta and a few more great works that enabled the world to understand deeper into the patterns and behaviours of planets along with their positions on the horizon.
In our very first attempt to reach space, the satellite named Aryabhata, built by ISRO, was successful in reaching space. A Russian Kosmos-3M rocket was used to launch the satellite from a Soviet rocket launch and development site. It was with the help of the Soviet Union that India made its first foray into space with a successful launch.
In the wake of these challenges, the Indian Space Research Organisation (ISRO) embarked on a remarkable journey towards self-reliance in the realm of space launches. Their solution? The creation of the Polar Satellite Launch Vehicle (PSLV), a groundbreaking expendable launch vehicle that would ultimately redefine India’s presence in outer space.
With the advent of the PSLV, India gained the capability to launch its own satellites independently, breaking free from reliance on foreign launch providers. This marked a significant turning point in the nation’s space endeavors. As time progressed, ISRO meticulously tailored various iterations of the PSLV to meet the diverse demands of its missions, proving their adaptability and dedication to space exploration.
One of the most impressive feats achieved by ISRO was its capacity to launch a multitude of satellites in a single mission, showcasing not only technological prowess but also a commendable efficiency and cost-effectiveness. The PSLV swiftly garnered worldwide acclaim, boasting a remarkable track record of successfully launching over 340 foreign satellites from 36 different countries.
The cost-effectiveness of these launch vehicles elevated their status as the preferred choice for international satellite deployments. Their consistent and efficient performance, coupled with affordability, made them irresistible to space agencies and satellite operators from across the globe.
India, through the PSLV, emerged as a crucial player in expanding global access to outer space and fostering international collaboration in the ever-evolving field of space exploration. This remarkable achievement not only showcased India’s technological capabilities but also its commitment to forging partnerships beyond borders, uniting humanity in the quest to unlock the mysteries of the cosmos.
After a considerable successful launches India was now ready to head towards the planets. Fast forward to 2013 when India astounded the world by achieving Martian orbit on its maiden attempt through the Mars Orbiter Mission, fondly known as Mangalyaan. This accomplishment not only placed India in an exclusive club of nations but also showcased the nation’s innovative, cost-effective approach to space exploration. Mangalyaan was launched from the Satish Dhawan Space Centre in India, using ISRO’s Polar Satellite Launch Vehicle (PSLV-XL). On September 2014, the spacecraft successfully entered Mars’ orbit, making India the fourth space agency globally to reach the Mars and the first to do so on its maiden attempt. This success received worldwide acclaim. It took Mangalyaan around 10 months to reach the Red Planet, imagine the excitement and the patience our scientists were holding during the period of time. The objective of this mission was to explore the surface features, study the constituents and dynamics of the upper atmosphere including the effects of solar wind and radiation. This mission also provided multiple opportunities to observe the Martian moon Phobos. Originally designed for a six-month mission, Mangalyaan continued to operate for about eight years in the Martian orbit beyond its expected lifespan, providing a wealth of data and insights into Mars’ geology, atmosphere, and climate. Finally, the communication with Mangalyaan was lost in April 2022, when it faced increasingly longer duration eclipses, including a seven-hour long eclipse that it was not designed to withstand. ISRO stated that the spacecraft was likely out of propellant and not recoverable.
It’s mind-blowing! I mean, the vastness, the mystery – it’s like a giant cosmic playground that makes you feel both tiny and limitless at the same time. Picture the cold, desolate surface of the moon, and a robotic emissary silently navigating its craggy terrain. This is Chandrayaan-1’s Moon Impact Probe(MIP), India’s maiden lunar probe, launched ten years ago in October 2008. Back then, little did the world anticipate that India’s tryst with the cosmos would be so transformative.This was a multifaceted mission, including mapping of the permanently shadowed north- and south-polar regions on Moon’s surface, studying its mineral composition, and searching for lunar water-ice, especially at the lunar poles. The orbiter carried 11 scientific instruments, including a Moon Impact Probe (MIP) and four others that were developed by the ISRO. It made a dramatic descent to the lunar surface on November 2008 near the crater Shackleton at the south pole. Although experiencing rise in temperature above normal, it managed to accomplish 95 percent of the objectives assigned to it. The most significant discoveries was the detection of water molecules on the Moon’s surface. Alongwith that the craft completed 3,000 orbits acquiring 70,000 images of the lunar surface, which is quite a record compared to the other lunar missions. The mission’s launch transpired on October 22, 2008, with an originally projected operational lifespan of two years. Regrettably, on August 28, 2009, a sudden and unexpected communication disruption occurred with the spacecraft. Remarkably, this transpired after the probe had functioned effectively for 312 days. It was initially anticipated that the craft would maintain its lunar orbit for an additional approximate 1000 days, culminating in a controlled lunar surface impact in late 2012. However, a subsequent revelation in 2016 ascertained that the spacecraft still maintained an orbital presence, defying earlier expectations.
The Indian space program has consistently emphasized the importance of international collaboration. As ISRO’s capabilities continue to advance, its capacity for international cooperation expands and diversifies, while it also maintains the ability to conduct independent missions. A noteworthy example of this independent mission capability is Chandrayaan-2.
In November 2007, representatives from Roscosmos and ISRO entered into an agreement to collaborate on a lunar mission. Under this agreement, ISRO assumed primary responsibility for the orbiter, rover, and GSLV launch, while Roscosmos was tasked with providing the lander. However, due to technical and financial constraints, Roscosmos was unable to deliver the lander within the revised timeframe. Consequently, India decided to pursue the lunar mission independently.
Repurposing hardware initially intended for Chandrayaan-2, ISRO initiated the development of the Vikram Lander and Pragyan Rover for the mission. The planned lunar landing of the lander was scheduled for September 2019. Notably, the descent and soft-landing relied on pre-installed computers on the Vikram Lander, which constrained real-time corrections from the mission control center.
Regrettably, during descent, the lander encountered a higher-than-expected collision with the lunar surface, resulting in a loss of communication with the control center. Analysis of radio transmissions tracked by analysts at the Netherlands Institute for Radio Astronomy indicated that the signal loss coincided with the lander impacting the lunar surface at a velocity of nearly 180 km/h, significantly exceeding the target touchdown velocity of 7.2 km/h.
Despite this unfortunate incident for ISRO, the orbiter component of the mission remains operational. Equipped with eight scientific instruments, it continues its seven-year mission to study the Moon, underscoring ISRO’s steadfast commitment to lunar exploration.
Throughout history, humanity has embarked on extensive explorations, spanning from the profound depths of the oceans to the towering summits of the world’s highest peaks. Space, often referred to as the ultimate frontier, has ceaselessly intrigued our collective imagination.
Harnessing the synergy of innovation and technology, India has quietly achieved remarkable milestones that, while lesser-known globally, bear significance for the betterment of humankind. One such feat is the Indian Regional Navigation Satellite System, NavIC, which stands as a testament to India’s prowess in navigation technology. Offering pinpoint accuracy in positioning and timing, NavIC serves as a beacon for users within India and its neighboring regions. Its applications transcend domains, from bolstering disaster management to enhancing transportation logistics and agricultural practices.
India’s GSAT series of communication satellites represents another monumental stride in the country’s technological advancement. These satellites have orchestrated a transformation in India’s telecommunications landscape, fostering improved internet connectivity, broadcasting services, and mobile communication infrastructure. Their reach extends from bustling urban centers to the remotest corners of the nation, effectively narrowing the digital divide that once existed.
In 2015, India unveiled Astrosat, its inaugural dedicated multi-wavelength space observatory. This sophisticated marvel has fundamentally altered our perspective of the cosmos, empowering astronomers to scrutinize celestial entities across diverse wavelengths. Astrosat’s research endeavors encompass the study of stars, galaxies, and enigmatic black holes, contributing substantially to the expansion of our cosmic comprehension.
These remarkable achievements underscore India’s ascension in the realm of space technology and its commitment to advancing scientific knowledge, often quietly but profoundly shaping the global landscape of innovation and discovery.
But, is India slowing down after the partial success of Chandrayaan-2? Well, it doesn’t seem like that. The unexplored lunar south pole region holds particular interest for many scientific reasons. The lunar ice could provide insight into lunar, Earth, and Solar System history. For future crewed missions and outposts, ice could also be a source of drinking water and of hydrogen for fuel and oxygen or could serve as a coolant for the equipments. Russia’s Luna-25 craft had been scheduled to land on the south pole but spun out of control on approach and crashed on August 2023. In the same month Chandrayaan-3 was in the lnar orbit as well and Vikram Lander approached the Lunar surface and performed a successful soft landing. The lander and the rover for the third mission to moon were named the same, Vikram Lander and Pragyan Rover but with technical upgrades to overcome the previous redundancies. Shortly after the successful landing the Pragyan Rover was deployed to begin it’s task. The rover mainly has two equipments responsible to determining the checmial composition and elemental conposition of lunar soil and rocks around the lunar landing site. But, the south pole of the moon is hazardous and full of surprises. Just about 3 meters from its location, the rover spotted a crater that seemed to be about 4 meters wide. The team has to be very careful and remain alert throught the mission, dodging all the unfavourable circumstances. The rover was commanded to retrace the path and is now safely exploring on a new path as I sit on my desk writing about it. The lander and rover are expected to operate only for one lunar daylight period, that is 14 Earth days. The on-board electronics are not designed to withstand the extremely low nighttime temperatures on the Moon which is around −120 °C. If the rover and lander were to survive the lunar night, the mission is planned to be extended for further operations.
After covering the Mars and the Moon, now ISRO is headed towards the Sun. It sure is a giant leap in the field of space exploration. This is the first Indian mission dedicated to observing the Sun, it’s weather and the composition of the space weather around it. Aditya-L1 was launched aboard the PSLV C57 at on September 2023, ten days after the successful landing of ISRO’s moon mission, Chandrayaan 3. I can only imagine the spacecraft approcahing towards the point where it will remain for performing it’s objectives. It will take around 109 Earth days after launch to reach the halo orbit around the L1 point, which is about 1,500,000 km from Earth. Very soon ISRO will start receiving the observtions from the spacecraft which will help the scientist around the world to understand of the dynamical processes of the Sun and address some of the outstanding problems in solar physics.
India’s aspirations in the field of space exploration reach far beyond the confines of Earth’s immediate surroundings. The Indian Space Research Organisation, known for its trailblazing missions to the Moon and Mars, has now set its sights on the two celestial bodies closest to our own planet: Venus and the Sun. In addition to missions to Venus and the Sun, ISRO is diligently working on its most ambitious endeavor yet, the Gaganyaan mission.
The mission to Venus, named “Shukrayaan-1,” is poised to explore the enigmatic and often mystifying “sister planet” of Earth. With a focus on deciphering Venus’s complex atmosphere and surface, this mission seeks to uncover valuable insights into planetary evolution and climate change, with potential implications for our understanding of habitable conditions beyond our planet.
The Gaganyaan mission represents India’s resolute commitment to expanding its space exploration capabilities and setting a new milestone in human spaceflight. Designed to make India the fourth nation globally to send humans into space, Gaganyaan has captured the world’s attention with its ambitious goal of carrying Indian astronauts, also known as “Vyomanauts,” beyond Earth’s atmosphere.
Scheduled to comprise a crewed spacecraft designed to safely transport astronauts, the Gaganyaan mission marks a momentous step in India’s space journey. The mission is anticipated to foster significant advancements in spacecraft technology, life support systems, and astronaut training.
Moreover, Gaganyaan embodies India’s dedication to exploring the frontiers of human space exploration. It seeks to offer profound insights into the challenges and opportunities of living and working in space, thereby paving the way for future space endeavors.
They exemplify not only scientific achievements but also a testament to India’s commitment to pushing the boundaries of human knowledge. As these missions unfold, they inspire generations to dream, explore, and reach for the stars while advancing India’s stature as a spacefaring nation.
India’s achievements in the field of space technology resonate not only as a source of profound national pride but also as a testament to the country’s remarkable technological prowess. This prowess has propelled India to a prominent position on the global stage of space exploration. From deploying satellites to conducting ambitious missions to explore distant celestial bodies, India has consistently demonstrated its exceptional capabilities in the challenging and awe-inspiring realm of space.
One of India’s standout achievements has been its consistent track record of launching satellites for nations around the world. These launches have not only underscored India’s reputation for reliability and efficiency but have also fostered international collaboration and cooperation in the domain of space. They have solidified India’s role as a trusted partner in advancing the global space agenda.
Moreover, India’s forays into the exploration of celestial bodies have captured the world’s imagination. Landmark missions such as Chandrayaan-1, which discovered water molecules on the Moon, and Mangalyaan, India’s Mars Orbiter Mission, have not only expanded our scientific understanding of these distant realms but have also demonstrated India’s ability to accomplish complex interplanetary missions with precision and success.
As the Indian Space Research Organisation (ISRO) continues to push the boundaries of space technology, the world watches with anticipation for the next chapter in India’s cosmic journey. It’s a journey where the sky is not seen as a limit but as a canvas for even grander aspirations. The innovations and breakthroughs achieved by ISRO inspire not only the people of India but also the entire global community, as they open new frontiers for scientific discovery and space exploration.
In this era where space exploration continues to capture the human spirit’s curiosity and ambition, India’s contributions stand as a beacon of what can be achieved when a nation sets its sights on the stars. As India’s advancements in space technology continue to unfold, they reaffirm the belief that our reach into the cosmos knows no bounds, and the future of space exploration holds boundless possibilities.