Tag: India

ISRO completes more ground tests of its Gaganyaan capsule, confirming launch delay

8:47 am

Artist rendering of India's Gaganyaan capsule
Artist rendering of India’s Gaganyaan capsule

India’s space agency ISRO yesterday announced it has successfully completed three qualification tests of engineering required by its manned Gaganyaan capsule during re-entry and splashdown.

First, it successfully tested the system that will disconnect the electrical and fuel lines between the crew module and its service module just before re-entry. Next it tested the structural integrity of the capsule during the release of its parachute cover and deployment of the parachutes during descent. Finally, it tested the balloon system that will inflate upon splashdown to make sure the capsule stays upright.

That ISRO is only testing these items now confirms what was rumored in December 2025 and in February 2026. Though government officials in January 2026 claimed the first unmanned test flight of Gaganyaan would take place in March 2026, apparently the agency’s management had already decided further testing and redesign was necessary after drop tests in late 2025, and that such unmanned test flights would be delayed at least a year, with the manned flight probably pushed back to 2028.

Once again, the problem here is not the required redesign and new testing. It is good they are doing the right due diligence to make sure everything works. The problem is the lack of transparency and the refusal to say honestly the present state of the schedule. All we get are contradictory hints that only serve to cause distrust, which in turn serve to discredit the agency.

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Likely debris from rockets washes up in Australia

12:50 pm

Though not yet identified, a half dozen round metal spheres that resemble the internal helium tanks rockets use to maintain pressure have washed up on beaches in Australia.

The Australian Space Agency confirmed on Sunday it was working to determine the nature and origin of the mysterious objects, which police said were suspected of containing hazardous chemicals.

Reports showed the objects, washed up on beaches in the Forrest Beach area of Townsville, appeared to be large spheres. The Queensland Fire Department said on Sunday a total of six objects had been found washed up on beaches. Five had been “secured into drums” and a sixth was being “rendered safe” on Sunday, a spokesperson said.

Assuming these spheres are rocket related, their most likely source would be from either a Chinese launch from its coastal Wenchang spaceport, an Indian launch from its east coast Sriharikota spaceport, or possibly a Russian launch from its Vostochny spaceport in far east Russia. All three dump lower stages in the Indian and Pacific Oceans.

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Skyroot announces launch window for 1st launch of Vikram-1 rocket

8:01 am

Vikram-1 stacked on the launchpad
Vikram-1 stacked on the launchpad

India’s rocket startup Skyroot yesterday announced that its first Vikram-1 rocket is stacked on the launchpad and the company now has a launch window from July 12 through August 4, 2026.

It will attempt to reach a 450 kilometer orbit at a 60 degree inclination. The launch is mostly to test the rocket’s systems, including its guidance and navigation as well as its ability to complete a stage separation and ignition of its second stage. The company says it will also carry several small commercial payloads from both Indian and international customers, but it did not name them.

Few new rockets succeed on their first launch attempt, but it does happen. For India this launch and company are the equivalent of SpaceX in the U.S. in 2006. At that time NASA ran everything. The big space rocket companies (Boeing and Lockheed Martin) had no interest in innovation or competition, and in fact had formed a partnership holding a monopoly on all military launches, while acting almost like the rocket division for those government agencies.

In India now, its space agency ISRO runs everything, including building and flying the nation’s rockets. The Modi government has been trying to get the agency to transfer ownership and management of those rockets to private companies, but the results have been inconclusive. ISRO has transferred some operations and management to private companies for two of its rockets, but done so in a way that ownership and control still remains with the agency.

A success by Skyroot would for the first time create a real alternative to the government agency. But like SpaceX in 2006, the full transition to a private space industry will likely take an additional decade or more. But a success now would be a start.

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First unmanned test of India’s manned Gaganyaan capsule possibly delayed until late ’27

9:11 am

Artist rendering of India's Gaganyaan capsule
Artist rendering of India’s Gaganyaan capsule

In a presentation yesterday, the head of India’s space agency ISRO V Narayanan indicated that the first unmanned test flight of its manned Gaganyaan capsule might be delayed until the third quarter of 2027.

That test flight was originally targeting a March 2026 launch — part of a series of three unmanned test flights before the manned flight in early 2027 — but March came and went and nothing happened, nor did ISRO explain the lack of any action.

In indicating the possible delay, Narayanan also noted that the agency was looking at a launch before the end of this year. A delay until late ’27 — more than a year — however would suggest a significant issue. It would also mean the manned flight could not occur until 2028, at the earliest.

When Gaganyaan was first proposed in 2018, the goal was to have the first orbital flight in 2022. Since then the program has experienced endless delays and postponements. This new announcement, with no explanation, fits ISRO’s recent pattern of secrecy. No specific reasons for this year’s delays have ever been offered. Meanwhile, the agency has refused to outline for more than two years the specific causes of the two PSLV rocket failures of its third stage, both of which occurred at almost the exact same time in launch.

The secrecy suggests a cultural problem at ISRO, even more serious than a technical one. It implies an unwillingness to deal with error, thus resulting in repeated failures.

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India won’t reveal the cause of its two PSLV rocket failures

10:19 am

India's space agency ISRO, as transparent as mud
India’s space agency ISRO,
as transparent as mud

Though one of India’s high government officials yesterday announced that its space agency ISRO had “resolved” the third stage issue that caused two consecutive failures of its PSLV rocket, that official also refused to provide any details.

Union Minister of State for Science and Technology Jitendra Singh on Saturday said that the anomaly in the Polar Satellite Launch Vehicle (PSLV) has been resolved. Dr. Singh said on the sidelines of the Research, Industry, Start-up and Entrepreneurship (RISE) Conclave 2026 in Bengaluru, that the national level expert committee constituted to review the reason for anomaly in PSLV Vehicle has submitted its report and the anomaly has been detected.

“The report has come out and the anomaly has been detected. However we cannot share that (reason for the anomaly) on a public platform. But experts are working on it, which has been resolved and very soon we will be back on the track,” Dr. Singh said replying to a query by The Hindu.

Note that after the first third stage failure in 2025, ISRO was also reticent about revealing the problem and how it fixed it. Then the third stage failed again at almost the exact same moment during the next launch in January 2026.

A month later this same official announced ISRO knew what the problem was and had fixed it — once again giving no details — and said the next launch was scheduled for June 2026. It is now June, and despite Singh’s promise no PSLV launch is being prepared.

This lack of transparancy speaks very badly for ISRO. It will make it extremely difficult for it to attract any commercial customers. In fact, that is basically what has happened. Before the Covid panic ISRO had a decent share of the commercial satellite market. Now, even with that satellite market growing in leaps and bounds, it has almost no commercial customers.

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India takes first step to privatize its largest rocket, the LVM3 or Bahubali

9:21 am

LVM3 launching a set of OneWeb satellites in 2022
LVM3 about to launch a set of OneWeb satellites in 2022

IN-SPACe, the agency assigned the job for shifting India’s space effort away from its space agency ISRO and to the private sector, yesterday released an Expression of Interest (EOI), asking India’s private aerospace industry for bids to take over operations of ISRO’s LVM3 rocket (also called Bahubali), its most powerful rocket that ISRO plans to use for its future manned and interplanetary missions.

The invitation for EOI, released on Tuesday, invites eligible Indian private companies or industry consortia to acquire and operationalise LVM3 technology from ISRO. The LVM3, often referred to as ISRO’s ‘Baahubali’ rocket, is the agency’s heaviest operational launch vehicle and is behind key missions including Chandrayaan 2 and 3. The selected private entity will receive technology transfer and extensive support from ISRO to absorb the technology and begin manufacturing and launching LVM3 vehicles commercially.

The EOI invitation also lays down the eligibility criteria for the applicable private entities. ISRO’s handholding and infrastructure support is proposed for a defined period of 42 months or until the realisation and launch of two LVM3 vehicles by the selected entity, whichever comes earlier.

The eventual goal is for the private sector to market LVM3 for commercial purposes, outside of ISRO’s Gaganyaan and space station manned program. While ISRO will continue to operate the rocket to launch manned missions as well as the country’s proposed Bharatiya Antariksh Space Station (BAS), the private company that takes over LVM3 will sell it to the international market for profit. As this is a powerful rocket, it can compete directly with SpaceX’s Falcon 9, ULA’s Vulcan, Blue Origin’s New Glenn, and Arianespace’s Ariane-6.

IN-SPACe has already begun this process with ISRO’s smallsat SSLV rocket, transferring operations in June 2025 to Hindustan Aeronautics Limited (HAL). There are also indications it is trying to do the same with ISRO’s mid-sized PSLV rocket. If all three transfers go through, almost all of ISRO’s rockets will be operated by the private sector.

Don’t expect this transition to the private sector to happen quickly. As we have seen in the U.S., the shift away from a government-run space program to a chaotic free capitalist space industry can take many years, decades even. And its eventual success is never guaranteed, as government agencies fight hard to protect their turf, and they have the power of government coercion to back them up.

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New study using Chandrayaan-2 data again suggests ice in crater near Moon’s south pole

9:06 am

The Moon's south pole region

The uncertainty of science: A new study by scientists in India using data from the Indian lunar orbiter Chandrayaan-2 has once again found evidence strongly suggesting the existence of water ice in several permanently shadowed craters near Moon’s south pole.

The findings are based on observations made by the Chandrayaan-2 orbiter’s Dual Frequency Synthetic Aperture Radar (DFSAR), a sophisticated microwave imaging instrument capable of probing beneath the lunar surface.

Among the craters examined, scientists found particularly strong evidence of subsurface ice in a 1.1-kilometre-wide crater located within the larger Faustini crater near the Moon’s south pole. Researchers said the crater displayed a distinctive “lobate-rim morphology”- a flow-like structural pattern that may indicate the impact event penetrated an ice-rich subsurface layer.

On the map above the green dot to the right of the south pole marks the location of the small crater inside Faustini Crater. Their conclusions were based first on microwave data suggesting subsurface ice, and second on the lobate shape of this crater’s rim, which has a kind blobby look implying the material is muddy and impregnated with ice.

Increasingly the data from all sources seems to suggest that if there is ice in these permanently shadowed craters, it is likely impregnated in the soil, and will require processing to extract.

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The present state of India’s space program

10:44 am

India's Bharatiya Antariksh Station as outlined in 2024
India’s Bharatiya Antariksh Station as outlined in 2024.
Click for original image.

India’s space agency ISRO yesterday released its annual report [pdf], outlining its accomplishments over during 2025.

Like all such reports, it is filled with glowing superlatives. It provides little concrete information about the agency’s more serious issues, such as what it is doing to fix the upper stage of its PSLV rocket, which has failed on the last two consecutive launches. All the annual report says on this subject is the following:

Based on the recommendations of the National Level Committee comprising of eminent experts from academia & industry, the third stage of PSLV i.e., HPS3 motor with modified design was realised and two static tests were successfully completed on October 06, 2025 and November 19, 2025 as in flight, from SDSC, SHAR. The overall performance of the motor and subsystems were as expected and closer to nominal performance.

The problem is that these fixes and tests did not work. The second failure of the upper stage occurred in January 2026, less than two months later. The annual report should have noted this fact, but did not.

As for India’s planetary program, digging out the present schedule from the report is difficult. Based on this review of the annual report, the dates are as follows:

  • Chandrayaan 4 lunar sample return mission: October 2027.
  • Venus Orbiter: March 2028.
  • Chandrayaan 5 /LUPEX lunar lander: September 2028.
  • Mars Lander: No target launch date as yet.

Expect these dates to be delayed.

The report also gives a detailed description on India’s Gaganyaan manned program, but little information about the planned unmanned tests that were planned for this year, leading to a manned orbital mission next year. At the moment the schedule appears to be experiencing delays, caused mostly by the PSLV launch failures. It appears ISRO wants this issue resolved before it launches that first unmanned Gaganyaan test flight.

If you want to get an overview of India’s government space program, this annual report is a good place to start. It will at least provide a baseline on which you can build a deeper knowledge.

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Indian rocket startup Skyroot now shipping its Vikram rocket to launch site

9:54 am

The Indian rocket startup Skyroot has now finished assembling its Vikram-1 rocket, and is about to ship it to its launch site at the Sriharikota spaceport on the east coast of India.

At Sriharikota, the rocket moves into final assembly and a round of system checks before a launch window is locked in the coming months. This is the last stretch before liftoff. Countdown operations, testing and integration now shift fully to the launch site.

One of the company’s founders said the most critical testing has been completed, with launch campaign activities set to begin at the spaceport.

The company is presently targeting a launch in June. If Vikram-1 reaches orbit successfully, Skyroot would become the first Indian private company to design, build, and launch its own rocket, and would be well positioned to win launch contracts from smallsat companies, competing directly with Rocket Lab and its Electron rocket.

This success would also help accelerate the Modi government’s effort to transition from a space industry controlled entirely by its government space agency ISRO to a private industry run by competing indepedent companies.

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India’s space agency: In ’25 it did 20 maneuvers to avoid collisions in space

10:29 am

India's space agency ISRO, as transparent as mud
India’s space agency ISRO.

India’s space agency ISRO today released its annual Space Situational Report, describing the collision possibilities that now exist due to the large increase in orbiting objects. According to this report, in 2025 ISRO did 20 maneuvers to avoid collisions in space.

More than 150,000 alerts issued by the Combined Space Operations Center (CSpOC) of USSPACECOM for ISRO’s Earth orbiting satellites were analysed using more accurate orbital data from operational flight dynamics. There were 4 collision avoidance maneuvers (CAM) for GEO [geosynchronous orbits], while 14 CAMs, including one for NISAR [A NASA/ISRO radar telescope], which is designated as Risk Mitigation Maneuver in NASA terminology, were performed for LEO [low Earth orbiting] satellites. Wherever feasible, collision avoidance requirements were met by adjusting orbit maintenance maneuvers to avoid exclusive CAMs.

In addition, ISRO had to twice shift the orbit of its Chandayaan-2 lunar orbiter because of an orbital conflict with NASA’s Lunar Reconnaissance Orbiter (LRO).

The report has a lot more interesting details, as ISRO is also trying to increase its ability to track everything in orbit, rather than rely on data from the American military or American commercial tracking companies, which has been the policy in the past.

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A review of India’s government space program suggests it is behind schedule

11:28 am

India's space agency ISRO, as transparent as mud
India’s space agency ISRO.

Link here. The main take-away of the article is that the investigation into the two launch failures of ISRO’s PSLV rocket has stalled everything, including the planned two unmanned orbital test missions of its Gaganyaan capsule, needed before the actual manned mission can fly in early 2027. The first was originally supposed to fly in March, but has been delayed pending completion of the investigation of the PSLV failures.

That investigation however has stalled far more than just Gaganyaan:

The Indian Space Research Organisation (Isro), which had announced an aggressive manifest of 18 launches for 2026, has so far completed only one in the first four months of the year, and that mission [PSLV] ended in failure.

The article also notes a decline in ISRO’S transparency in recent months, a decline that bodes ill for the agency and its programs. I have noted this as well. When ISRO in February 2026 announced the next PSLV launch for this coming June, it released no information from its investigation of the previous two launch failures. If ISRO knows what went wrong, it wasn’t saying. All it has told us so far is that the cause of the two launch failures was for different reasons.

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India conducts another parachute drop test for its Gaganyaan manned capsule

9:03 am

Gaganyaan drop test
Click to watch video of drop test.

India’s space agency ISRO today successfully completed its second helicopter drop test of a dummy capsule, testing the parachute release system that its Gaganyaan manned capsule will use on return to Earth.

In this test, a simulated Crew Module, weighing about 5.7 tonnes, that is equivalent to the mass of the Crew Module in the first uncrewed Gaganyaan mission (G1), was lifted by an Indian Air Force Chinook helicopter to an altitude of about 3km and released over a designated drop zone in sea, near to Sriharikota coast.

Ten parachutes of four types were deployed in a precise sequence during the descent of the Crew Module, gradually reducing the velocity for safe touchdown. Subsequently, the simulated Crew Module was successfully recovered in coordination with Indian Navy. The IADT-02 test validated the parachute-based deceleration systems in the Crew Module.

The manned mission is presently scheduled for early next year, after a series of unmanned orbital test flights are completed in ’26. This schedule is significantly later than ISRO’s original schedule. When the program was first proposed in 2018, ISRO said the manned mission would happen in 2022.

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India’s space agency requests proposals for building landing legs for its next new rocket

8:59 am

NGLV as proposed in November 2025
NGLV (the two rockets in the middle) as proposed
in November 2025. Click for bigger image.

India’s space agency ISRO has issued a request for bids from the country’s commercial aerospace sector to build landing legs for its next new rocket, dubbed the Next Generation Launch Vehicle (NGLV).

The tender, titled “Fabrication of Landing Leg Hardware with materials for Advanced Development Module for In-situ Reusable Technologies (Admire) VTVL (10 units)”, seeks industry participation in developing critical components for a vertical take-off, vertical landing (VTVL) test vehicle under the ADMIRE programme.

…According to ISRO’s tender documents, the selected vendor will be responsible for end-to-end development, including procurement of raw materials, manufacturing, quality control planning, and final delivery of landing leg hardware. The project has been structured into three distinct phases spanning approximately 12 months.

The NGLV rocket was first approved by the India government in September 2024. Since then ISRO has completed the preliminary design of its methane engine, but has also revised the rocket’s design twice, in October 2024 and again in November 2025. This new landing leg contract suggests the agency hopes to do some test hops of a first stage prototype a year from now.

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India’s second spaceport to be completed next year

9:26 am

The existing and proposed spaceports in India
The existing and proposed spaceports in India

According to officials in India, the nation’s second spaceport at Kulasekarapattinam is on schedule to be completed by next year, when it will become available for polar launches of the SSLV rocket as well as other commercial rocket launches.

India is moving ahead with plans to operationalise a new launch facility at Kulasekarapattinam in Tamil Nadu. It is expected to be commissioned during the 2026–27 financial year, according to information shared in the Lok Sabha by Jitendra Singh.

The new facility, officially called the Small Satellite Launch Vehicle (SSLV) Launch Complex, is being developed as the country’s second space launch site. The Kulasekarapattinam complex will primarily handle launches of SSLV missions to Sun-synchronous Polar Orbit, a trajectory widely used for Earth observation satellites.

The SSLV rocket is at present controlled by India’s space agency ISRO, though there has been an effort by the Modi government to transfer it to the private sector. It is not clear whether that effort has been successful. ISRO and India’s large space bureaucracy has been resistant. There have also been indications that this new spaceport will be made available to the handful of Indian rocket startups that are developing their own rockets.

The Sriharikota spaceport is ISRO’s main launch site. The Hope Island site is a proposed commercial and private spaceport, whose future remains very uncertain.

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Indian rocket startup Agnikul completes static fire test of three-engine cluster

8:59 am

The Indian rocket startup Agnikul has now released a video of a 40-second static fire test of three-engine cluster it hopes to use on its Agnibaan orbital rocket.

The engines, powered by electric motor-driven pumps, were designed and manufactured in-house at Agnikul’s Rocket Factory-1. All three were fully 3D-printed as single-piece hardware units, reflecting the startup’s focus on advanced manufacturing and indigenous engineering.

Co-founder and chief executive Srinath Ravichandran said that increasing the number of engines improves rocket performance and that a three-engine system is required for commercial missions. The clustered test involved calibrating six pumps and six motors and fine-tuning six independent speed control algorithms to function in synchronisation. The goal was to achieve uniform startup, steady-state operation and shutdown performance across all three engines, a technically complex process given the precision required in semi-cryogenic propulsion systems.

The company has completed one suborbital test launch in May 2024, and in September 2025 said its orbital rocket’s first stage will land vertically and be reused.

Agnikul however has not released any schedule for launch, and based on this static fire test appears years from a first launch. It is making progress, but slowly. At the same time, it says it has raised $500 million in private investment capital, giving it the resources to build the rocket.

Based on testing and published progress, Agnikul appears to be trailing India’s other rocket startup Skyroot, though this could change in the coming year.

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India negotiating a possible Gaganyaan docking at ISS

11:17 am

India's Bharatiya Antariksh Station as outlined in 2024
India’s Bharatiya Antariksh Station as outlined in 2024.
Click for original image.

The head of India’s space agency ISRO, it is negotiating with NASA about doing a variety of manned space operations in conjunction with NASA, including a possible Gaganyaan docking to ISS.

According to a presentation by Isro chairman V Narayanan reviewed by TOI [Times of India], the future cooperation areas span three key areas of collaboration between the two nations’ space agencies.

The first involves comprehensive training of ISRO personnel, including astronauts, at NASA facilities across multiple domains, including robotics systems, extravehicular activity (EVA), extravehicular mobility unit (EMU) systems, resource management, space medicine and spaceflight operations, LEO and lunar mission control operations, rendezvous and docking procedures, and payload and science operations.

An important initiative outlined is the uncrewed docking demonstration of India’s Gaganyaan Orbital Module with the US Orbital Segment of the ISS — this would mark a significant technological milestone for India’s human spaceflight programme.

The third area focuses on cooperation in docking, berthing, and inter-operability systems.

It is clear ISRO wishes to get training from NASA for its manned missions. It also makes sense for it to make sure its Gaganyaan’s docking systems are compatible with ISS, Dragon, Starliner, Soyuz, and even China’s station.

Doing a test unmanned docking at ISS would also provide ISRO valuable experience in preparation for its own Bharatiya Antariksh Station (BAS). Its first module is presently scheduled for launch in 2028, with the entire station assembled by 2035.

None of this however has been finalized. If India were to do a docking at ISS, it would like have to wait until 2029, after the two tourist missions assigned to Axiom and Vast. ISS has a limited number of available ports, and I suspect a port really won’t be available until after those missions.

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First unmanned Gaganyaan mission facing delay

9:33 am

Artist rendering of India's Gaganyaan capsule
Artist rendering of India’s Gaganyaan capsule

Though this is not yet confirmed, sources inside India’s space agency ISRO are saying that the first unmanned Gaganyaan orbital test mission, presently targeting a March launch, is likely to be delayed in order to do additional safety checks, following the two consecutive launch failures of the agency’s PSLV rocket.

After the dual PSLV setbacks, there is zero appetite for risk at Isro. Every component, fitting, system, and subsystem of Gaganyaan is being re-examined in minute detail to ensure mission success.

The PSLV, traditionally regarded as Isro’s workhorse launcher, suffered rare back-to-back failures over the past two years, prompting a comprehensive review of quality assurance and mission readiness protocols across launch vehicles. While Gaganyaan is slated to fly aboard the Human-Rated Launch Vehicle Mark-3 (HLVM3), an upgraded version of the GSLV Mk-III, the recent setbacks have cast a shadow over the broader launch ecosystem.

The actual manned mission is presently scheduled for early next year, after a series of unmanned orbital test flights are completed in ’26. This schedule is significantly later than ISRO’s original schedule. When the program was first proposed in 2018, ISRO said the manned mission would happen in 2022.

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Fairing from India’s Bahubali rocket launched in December found in Maldives

9:00 am

A man fishing off an uninhabited island in the Maldives discovered what appears to be pieces from the fairing used by India’s LVM3 rocket, also dubbed Bahubali, when it launched AST SpaceMobile’s sixth Bluebird satellite in December.

A similar discovery was made on December 28, 2025 in Sri Lanka. In both cases it is theorized that the material came from the fairings of the December Bahubali launch.

I am unable to determine the flight path of the Bluebird launch, but the location of this debris suggests it headed strongly south from India’s east coast spaceport. The fairing pieces then drifted south and west to reach the Maldives after two months.

SpaceX routinely recovers its fairing and resuses them, which due to the fairing’s basic shape has turned out to be relatively straightforward. They have the shape of a boat’s hull, and after parachuting softly down can simply float on the surface until they can be picked up. It is absurd no one else does this.

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FAKE Chandrayaan-2 images of the Apollo 11 and 12 landing sites

8:30 am

Chandrayaan-2 images of Apollo 11 and Apollo 12 landing sites

The pictures to the right are fake, as are the two stories I had linked to in the now crossed-out post below. Both stories included pictures of the Apollo 11 and Apollo 12 landing sites that were fake and did not match the actual pictures taken earlier by Lunar Reconnaissance Orbiter.

I seem to remember that Chandrayaan-2 had taken pictures of these Apollo landing sites, but I have not been able to find those originals. Either way, the stories below as well as the pictures to the right are fake, and for that reason I have deleted the links to both.

For reasons I don’t understand, two different news outlets in the past two days decided to highlight the 2021 images taken by India’s Chandrayaan-2 lunar orbiter of the Apollo 11 and 12 landing sites, with both outlets claiming these pictures provided third-party verification that those manned lunar landings actually happened.

Those pictures are to the right. They aren’t new, but they are so good I decided they were cool enough to post again.

As for proving the lunar landing happened, that is pure anti-American silliness, sadly too often pushed by ignorant Americans. They should be ashamed. The Apollo landings were possibly the greatest single achievement Americans have ever accomplished. And if not the greatest, the landings rank near the top, and above all they certainly were among our noblest achievement.

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India picks landing site for its Chandrayaan-4 lunar sample return mission

10:22 am

Landing sites at the Moon's South Pole

Scientists at India’s space agency ISRO have now picked [pdf] a preliminary landing site for its planned Chandrayaan-4 lunar sample return mission, scheduled to launch in 2028.

[Four] sites of Mons Mouton area was fully characterised with respect to terrain characteristics using high resolution OHRC multiview image datasets and it was found that 1km x 1km area around MM-4 (-84.289, 32.808) contains the less hazard percentage, mean slope of 5°, Mean height of 5334m and most number of hazard free grids of size 24m x 24m. Hence MM-4 can be considered for the potential site of Chandrayaan-4 mission.

The study area of all four sites is indicated on the map to the right by the red dot labeled “Chandrayaan-4”. This mountain, Mons Mouton, is essentially a flat plateau between the numerous craters in the south pole region (many with permanently shadowed craters). Intuitive Machines second lander, Athena, attempted a landing there last year, and tipped over, as did that company’s first lander, Odysseus, both indicated in green. Astrobotic’s Griffin lander (yellow) is targeting this mountain also, hopefully to launch later this year.

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