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As scientists at ISRO gear up for the much-awaited soft landing of the Chandrayaan-3 spacecraft on the Moon‘s surface, the space agency may postpone the touchdown to August 27 in the event that health parameters of the lander module are found to be “abnormal”, a senior official has said. 

ISRO had planned the soft landing of the Chandrayaan-3 spacecraft at 06.04 pm IST on August 23.

The Moon mission was launched on July 14 at 2.35 PM IST from Sriharikota.

According to ISRO Space Applications Centre Director Nilesh Desai, the focus of the scientists would be on reducing the speed of the spacecraft above the lunar surface.

“The lander will try to land on the Moon’s surface from a height of 30km on August 23, and its velocity at that time will be 1.68 km per second. Our focus will be on reducing that speed because the Moon’s gravitational force will also play its part,” he told PTI in Ahmedabad.

“If we do not control that speed, there will be chances of a crash landing. If any health parameter (of the lander module) is found abnormal on August 23, then we will postpone the landing to August 27,” he said.

Responding to a query, Desai expressed hope that scientists would try to make the lander module land on the lunar surface successfully.

“The landing begins at 06.04 PM IST. Two hours before that, we will upload the commands. We will do an analysis of the telemetry signal and consider the conditions of the Moon. If any health parameter goes wrong, we will push it to August 27 and will try to land (on that day) if all goes well,” he said.

Observing that the final 17 minutes of the descent of the lander module are “very vital”, he said, “When we begin landing, four-engine thrusters will fire and reduce its speed.” “When the lander is at a height of 800m from the lunar surface, running on two engines, the speed will reach zero. From 800m to 150m, it (lander module) will descend vertically,” he said.

Data collected using the sensors on board the lander module will be very important and, on that basis, the landing site would be chosen, he said.

“We have sensors that would transmit exact information about the speed and distance of the lander from the Moon’s surface,” he said.

“Planning (safe-landing on the lunar surface) has been done keeping various scenarios in mind. We hope to land at 70 degrees latitude safely on the Moon’s South Pole on August 23,” he said.

To another query, he said,” A lot of upgrades have been made this time. Hardware systems are made robust. We will be successful (in soft landing on the lunar surface),” he said.

In case the mission shifts to August 27, he said, “we have chosen another landing site which is 400 km away from the main landing site.” Speaking about Russia’s Luna-25 mission that crash landed on the Moon, Desai said Moscow has a lot of resources and despite that, they failed.

“They were trying to proceed to the South Pole of the Moon. It is normal to be disappointed (since the mission failed). At ISRO, we have been working to make the Chandrayaan-3 mission a success for the past four years,” he said.

“The previous Chandrayaan-2 mission was a failure during soft landing. We have learned from our mistakes. (This time) we have made a lot of changes and added new sensors,” he said.

He said the scientists conducted a lot of field trials and carried out tests in various centres of ISRO.

“We are confident this time. We hope to succeed this time. People’s wishes are also with us.” he said.

Earlier in the day, ISRO said the mission is on schedule and it is smooth sailing for the spacecraft.

“The mission is on schedule. Systems are undergoing regular checks. Smooth sailing is continuing,” ISRO said.

Chandrayaan-3 lander module’s soft landing on the lunar surface would put India in the elite club of countries that have reached the Moon’s surface — the United States, the erstwhile Soviet Union and China.


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Doomed Exoplanet TOI-2109b Spirals Toward Its Star with Three Possible Fates

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Doomed Exoplanet TOI-2109b Spirals Toward Its Star with Three Possible Fates

The gas giant TOI-2109b is more than five times as massive as Jupiter, and resides in a perilous orbit 870 light-years from our planet. As an “ultrahot Jupiter,” it completes a lap around its parent star in a mere 16 hours, the briefest orbit of any such planet known. It is baking its atmosphere to broiling temperatures, and inching closer to oblivion in an orbit that is slowly pulling it in toward its parent sun. Using archived space telescope data from TESS and Cheops, astronomers have observed the testimony of this inevitable spiral, and contemplated three (wildly divergent) possible fates of the doomed planet.

Fates for TOI-2109b

According to the new research, conducted with data from NASA’s TESS and ESA’s Cheops missions shows that TOI-2109b’s orbit is decaying — a process it will continue for thousands of Earth’s years to come by 10 seconds over three Earth years. This proves that it is in a process of slow in fall. If the decay becomes worse, the planet may start falling directly into its host star and create a luminous flare, just like ZTF SLRN-2020. Alternatively, the star’s tidal forces could permanently warp the planet and rip it asunder.

A Potential Planetary Rebirth

There is a third, less-tragic possibility which could happen through a process of photoevaporation, in which strong radiation from the hosting star removes TOI-2109b’s gaseous envelope to reveal its rocky core. If the planet shrinks quickly enough, it might survive the process, avoiding its destruction by spiraling within its eternal Roche limit, and settling as a super-Earth or Neptune-sized blow-up hard relic. Then TOI-2109b would be an odd, rare opportunity to witness up close how this process unfolds.

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Hubble Spots Interstellar Invader Comet 3I/ATLAS for the First Time

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Hubble Spots Interstellar Invader Comet 3I/ATLAS for the First Time

The Hubble Space Telescope has taken its initial shots of comet 3I/ATLAS, a comet visiting us from beyond our solar system that recently fell apart — but not before it struck a pose for the cameras. It’s only the third such object ever known, after 1I/ʻOumuamua in 2017 and 2I/Borisov in 2019. The subject of numerous scientific tweets and some frantic searches by astronomers anxious to figure out just what it is — and where it came from — before it is gone into the pitch black of deep space forever, 3I/ATLAS was first sighted by the ATLAS survey telescope on July 1, 2025.

Ancient Interstellar Comet 3I/ATLAS Offers Clues to Planetary Systems Beyond Our Own

According to As per Space.com, recent studies indicate that 3I/ATLAS could be some 7 billion years old, well beyond the 4.6 billion years of our solar system. That’s an indication that the comet arose in the more ancient parts of the Milky Way, which would give researchers a rare glimpse of what the early days of other planetary systems were like. Undergraduate researcher Astrafoxen first flagged the Hubble images on Bluesky, noting the comet’s “nice and puffy” coma, despite interference from cosmic rays.

A newly available preprint paper has already revealed that 3I/ATLAS contains abundant water ice and a dust makeup resembling D-type asteroids—organic-rich bodies typically found in the outer solar system. Unlike ultrared trans-Neptunian objects, D-types are believed to have high carbon and silicate content, potentially shedding light on the comet’s deep-space origins and volatile chemistry.

The comet 3I/ATLAS was discovered just as the Vera C. Rubin Observatory was gearing up to carry out its initial observations of the heavens, dovetailing with the LSST’s expected discovery of many more interstellar objects in the coming decade.

Until then, 3I/ATLAS holds the astronomical spotlight. Its brief solar system passage offers a precious opportunity for researchers to analyse the material makeup of alien planetary systems. The Hubble images, now available for download, are expected to aid future papers as scientists continue to unravel the story of this ancient cosmic traveller.

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Meet Walker S2: The Self-Sufficient Humanoid Robot with Swappable Battery Tech

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Meet Walker S2: The Self-Sufficient Humanoid Robot with Swappable Battery Tech

In today’s world, there are amazing and weird humanoid robots; however, there is one which is an eye-catching machine launched in 2025 with its battery pack. This makes it more capable of running for a full day and even seven days a week. The robot’s name is Walker S2, and it has been made by the Chinese company UBTECH with dimensions of 5 feet 3 inches or 162 centimetres in height and weighs 43 kilograms or 95 pounds, which makes it a perfect size and weight for a small adult.

Walker S2: A Self-Sufficient Humanoid Robot with Swappable Battery System

As per UBTECH, it is a great robot, as with the help of a 48-volt lithium battery wrapped in a dual battery system, the robot can stand for four hours and walk for two hours before the power runs out. It takes 90 minutes to recharge the battery completely once it is depleted. It is the first robot which doesn’t need human interference to remove and recharge the battery, as it can do this on its own.

In a video published on July 17, 2025, on YouTube, the Walker S2 is also observed as charging its battery by approaching the station. It uses its arms to remove the battery pack, which is fitted in the back and places it into a vacant slot to recharge. It then takes out a fresh battery pack then inserts it into the dedicated port.

UBTECH’s Vision: Walker S2 as the Future of Factory and Public Service Robotics

It has been reported by the Chinese publication CnEVPost that Walker S2 removes and swaps its battery pack when one of its batteries is out of power. It can also detect the remaining power left and decide whether it can swap or charge the battery pack.

This robot is designed to be used in factories and other places where it can do the jobs of humans and greet and meet customers at public places. Further, it has 20 degrees of freedom and is compatible with Bluetooth and WiFi.

For the latest tech news and reviews, follow Gadgets 360 on X, Facebook, WhatsApp, Threads and Google News. For the latest videos on gadgets and tech, subscribe to our YouTube channel. If you want to know everything about top influencers, follow our in-house Who’sThat360 on Instagram and YouTube.


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