Differences between Chandrayaan 1 and Chandrayaan 3


Chandrayaan 1 and Chandrayaan 3 are both lunar missions conducted by the Indian Space Research Organization (ISRO). However, there are notable differences between the two missions. One significant difference is the objective of each mission. Chandrayaan 1, launched in 2008, aimed to orbit the moon and conduct scientific experiments to study its surface and composition. On the other hand, Chandrayaan 3, planned for launch in late 2022 or early 2023.

Chandrayaan-1 vs. Chandrayaan-3: A Giant Leap in India’s Lunar Exploration

India’s voyage into space has been marked by daring efforts to investigate the secrets of the Moon. With its Chandrayaan missions, the Indian Space Research Organization (ISRO) has continually upped the bar in lunar exploration. Chandrayaan-1, launched in 2008, was India’s first lunar mission, while Chandrayaan-3, the most recent mission, promised to advance India’s lunar objectives. In this essay, we will look at the contrasts between these two missions and how Chandrayaan-3 represents a big step forward in India’s lunar exploration effort.

Chandrayaan-1: A Pioneering Step

Objectives of Chandrayaan-1:

Chandrayaan-1, launched in 2008, was India’s maiden lunar mission with the following objectives:

  1. Remote Sensing: Chandrayaan-1 aimed to perform high-resolution remote sensing of the Moon’s surface, mapping its mineral composition and topography.
  2. Water on the Moon: The mission sought to detect the presence of water or ice on the lunar surface, which could have profound implications for future lunar missions.
  3. Lunar Impact Probe: Chandrayaan-1 included an impact probe designed to impact the lunar surface and relay valuable data back to Earth.

Achievements of Chandrayaan-1:

Chandrayaan-1 achieved significant success in its remote sensing objectives and made a groundbreaking discovery – it detected water molecules on the lunar surface, confirming the presence of water-ice in the Moon’s polar regions. The lunar impact probe, as planned, sent valuable data during its descent. Unfortunately, the mission was prematurely terminated due to a communication loss, but its achievements laid the groundwork for future lunar exploration.

Chandrayaan-3: The Final Frontier

Chandrayaan-3’s goals are as follows:

India’s planned lunar mission, Chandrayaan-3, is intended to build on the successes and lessons learnt from Chandrayaan-1 and Chandrayaan-2. Its goals are bold and far-reaching:

  1. Safe and gentle Landing on the Lunar Surface: One of the key goals of Chandrayaan-3 is to show a safe and gentle landing on the lunar surface. Because of the lack of atmosphere and the requirement to keep the precious payload intact, landing a spacecraft on the Moon with pinpoint accuracy is a tough undertaking.
  2. Rover movement on the Moon: The mission’s second goal is to demonstrate rover movement on the lunar surface. Rovers are critical tools for lunar exploration because they can travel the surface, collect samples, and conduct experiments in lunar environments. multiple locations, significantly enhancing our understanding of the lunar surface and its composition.
  3. Conducting In-Situ Scientific Experiments: The third critical objective is to conduct in-situ scientific experiments on the Moon. This involves deploying instruments and sensors to gather data directly from the lunar surface, providing valuable insights into the Moon’s geology, mineral composition, and potential as a resource for future space missions.

Technological Advancements in Chandrayaan-3:

Chandrayaan-3 is equipped with advanced technologies within its Lander module (LM) to achieve its objectives, including altimeters, velocimeters, inertial measurement systems, a sophisticated propulsion system, Navigation, Guidance & Control (NGC) software, hazard detection and avoidance systems, and a robust landing leg mechanism. These technologies reflect ISRO’s commitment to ensuring a successful lunar landing, even in the face of potential challenges.

A Comparative Analysis

Let’s now compare Chandrayaan-1 and Chandrayaan-3 to highlight the significant differences:

1. Objective:

  • Chandrayaan-1 primarily focused on remote sensing and water discovery.
  • Chandrayaan-3 aims for safe landing, rover mobility, and in-situ experiments.

2. Achievements:

  • Chandrayaan-1 made groundbreaking discoveries regarding lunar water but faced communication loss.
  • Chandrayaan-3 is yet to achieve its objectives but represents a more comprehensive and ambitious approach to lunar exploration.

3. Technological Advancements:

  • Chandrayaan-1 employed advanced technology for its time.
  • Chandrayaan-3 features cutting-edge technology to ensure safe landing and rover mobility.

4. Landing Attempt:

  • Chandrayaan-1 didn’t attempt a landing.
  • Chandrayaan-3 is specifically designed for a lunar landing.

5. Current Status:

  • Chandrayaan-1 completed its mission.
  • Chandrayaan-3 is in the development phase.


The lunar exploration missions Chandrayaan-1 and Chandrayaan-3 represent two separate phases in India’s lunar exploration quest. While Chandrayaan-1 provided the groundwork for future lunar missions, Chandrayaan-3 represents India’s commitment to pushing the boundaries of lunar exploration. With its lofty goals and cutting-edge technology, Chandrayaan-3 promises to be a huge leap forward in India’s effort to uncover the mysteries of our nearest cosmic neighbor. As we await the launch of Chandrayaan-3, it is a tribute to India’s rising prowess in space research.

We will be happy to hear your thoughts

Leave a reply


Enable registration in settings - general