Here is a concise summary of the text:
**Title:** ISRO's Chandrayaan 3 Mission
**Summary:**
* India's space agency, ISRO, is preparing for Chandrayaan 3, a mission to land on the Moon's surface, after the partial success of Chandrayaan 2.
* The mission aims to:
1. Successfully land a lander and rover on the Moon's surface.
2. Rectify the failure of Chandrayaan 2.
3. Maintain India's self-confidence in space exploration on a low budget.
* Key aspects of Chandrayaan 3:
+ Launch: Late 2022 or 2023 from Tamil Nadu, India, using GSLV Mark 3.
+ Budget: Approximately ₹900 crore.
+ Lander: Upgraded from Chandrayaan 2, with improved software and a laser altimeter.
* Success implications:
1. India will become the 4th country to achieve a soft landing on the Moon.
2. Paves the way for future collaborations, including the Lunar Polar Exploration Mission (LUPEX) with Japan in 2024/25.
3. New discoveries and unraveling of Moon's mysteries.
Here are the key facts extracted from the text, each with a number and in short sentences:
1. **ISRO's upcoming mission**: Chandrayaan 3 will attempt to land on the Moon's surface.
2. **Previous Moon mission**: Chandrayaan 1 (Van) was launched in 2008 with a limited budget.
3. **Chandrayaan 1 achievement**: Discovered water on the Moon's surface for the first time.
4. **Chandrayaan 1 duration**: The orbital component spied on the Moon for 1 year before its connection was lost.
5. **Chandrayaan 2 (Tu) launch**: Launched in 2019 with an orbiter, lander, and rover.
6. **Chandrayaan 2 (Tu) outcome**: Partially successful; the lander's connection was lost, but the orbiter remains in Moon's orbit.
7. **Chandrayaan 3 objective**: To successfully land a lander and rover on the Moon's surface.
8. **Chandrayaan 3 lander**: Will use a different lander than Chandrayaan 2, with four throttleable engines.
9. **Chandrayaan 3 instrument**: Equipped with a laser altimeter to detect the lander's speed.
10. **Launch schedule**: Initially planned for 2021, postponed due to Coronavirus; now expected in late 2022 or 2023.
11. **Launch vehicle**: GSLV Mark 3, prepared by ISRO, which is also used for geostationary orbit launches.
12. **Budget**: Approximately ₹900 crore, slightly more than Chandrayaan 2's budget.
13. **Launch site**: A 200-acre site in Kundi district, purchased by the Tamil Nadu government.
14. **International collaboration**: ISRO and Japan's space agency (JAXA) are collaborating on the Lunar Polar Exploration Mission (LUPEX) starting in 2024/25.
15. **LUPEX objective**: To explore the Moon's polar surface and pave the way for human missions.
16. **India's role in LUPEX**: Contributing a lander, making the success of Chandrayaan 3 crucial for this collaboration.
17. **Potential milestone**: If successful, India will become the fourth country to achieve a soft landing on the Moon.