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ISRO plans to launch Chandrayaan-3, its third mission to the moon, in June next year with a more robust lunar rover onboard which is crucial for future inter-planetary explorations.

The space agency has also lined up the first test flight of the ‘abort mission’ for Gaganyaan, the country’s first human spaceflight, early next year.

Chandrayaan-3 (C-3) launch will be in June next year onboard the Launch Vehicle Mark-3 (LVM3),” said Indian Space Research Organisation (ISRO) chairman S Somnath while interacting with media personnel on the sidelines during an event.

He said ISRO plans to fly Indian astronauts into orbit by the end of 2024 after carrying out successful abort missions and uncrewed test flights.

India’s maiden attempt to land a rover on the moon ended in failure after the Vikram lander onboard the Chandrayaan-2 mission crashed on the surface of the moon in September 2019.

“C-3 is ready now. It is not a replica of C-2. The rover is there. The engineering is significantly different. We have made it more robust so that it does not have problems like last time,” Somnath said.

“There are many changes. The impact legs are stronger. It will have better instrumentation. In case something fails, something else will take over,” the ISRO chairman said.

He said the rover will also have different methods to calculate the height to be travelled, identify hazard-free locations and have better software.

On the human spaceflight Gaganyaan, Somnath said ISRO would carry out six test flights before actually flying humans into orbit.

Somnath said the preparations for the Gaganyaan mission were progressing at a “slow and steady pace”.

“This is the right way to put it. It is a very complex mission. We cannot boast about it. It requires very critical steps to be crossed,” he said.

The first un-crewed flight of Gaganyaan will be after two abort missions to demonstrate that the space agency has the capabilities to rescue the crew in case of any eventuality.

The first abort mission is likely to be carried out in trans-sonic conditions when the spacecraft is travelling at the speed of sound after reaching an altitude of 10-15 kms, Somnath said.

The second would entail demonstrating crew rescue capabilities when the spacecraft is travelling at twice the speed of sound and in “not so good” aerodynamic conditions.

As part of the abort mission, the space scientists will have to sail the crew from the launch vehicle using a saving system, land the capsule carrying the crew in water and collect it.

“If this is successful, we will repeat it once again and then we will go for an unmanned mission. The unmanned mission will be a full-fledged rocket. It will go to orbit, then it will come back,” Somnath said.

“We will repeat the abort missions two more times followed by another unmanned mission,” he said, adding that the human space flight will happen if these six test flights are successful.


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A Planet with a Death Wish: How HIP 67522 b Is Forcing Its Star to Explode

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A Planet with a Death Wish: How HIP 67522 b Is Forcing Its Star to Explode

Scientists have caught a planet with a death wish, which is an alien world, orbiting very near to its star, and so speedy that it is causing the star to go to its death with bursting explosions. HIP 67522 b is the planet, and it is of the same size as Jupiter with a seven-day orbit around its host star. These orbits are disturbing the magnetic field of the star and causing enormous blasting eruptions to blow back the planet and make it wrinkled. This is the first time that a planet is influencing the host star, as the astronomers reported in a study published on July 2, 2025, in the Journal Nature.

A Planet with a Death Wish: HIP 67522 b’s Fiery Orbit

As per the study by NASA, Ekaterina Ilin, the first author of the study and an astrophysicist at the Netherlands Institute for Radio Astronomy, said that the planet was observed to trigger the energetic flares. It has been predicted by the scientists that the waves are setting off explosions that are going to happen.

Magnetic Chaos: Planet Triggering Star’s Explosions

Stars are burning plasma, gigantic balls with charged particles or ions that move on their surface to form strong magnetic fields. Since the magnetic fields cannot cross each other, sometimes these field knots suddenly snap to launch flares of radiation known as solar flares, which are often accompanied by coronal mass ejections, also known as surface plasma.

As many planets have a magnetic field, scientists have long wondered whether the planets, having close orbits near their stars, might disturb these strong magnetic fields and trigger the explosions. For years, scientists have observed whether the planets can influence the magnetic behaviour of their host stars, especially the ones that are close to their orbits.

A New Era of Star-Planet Relationship Studies

A planet with a strong magnetic field orbits around a star which has a delicate magnetic field, then it might be bombarded with solar radiation. These interactions helps int he study of star and planet bond and further the evolution of atmospher and magnetic field.

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Webb Telescope Spots Possible Jellyfish Galaxy 12 Billion Light-Years Away

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Webb Telescope Spots Possible Jellyfish Galaxy 12 Billion Light-Years Away

Astronomers have discovered a new “jellyfish” galaxy about 12 billion light-years away using the James Webb Space Telescope. It appears to have tentacle-like streams of gas and stars trailing off one side, a signature feature of jellyfish galaxies. These galaxies develop such trails via ram pressure stripping as they move through dense cluster environments, triggering star formation in the stripped gas. The find was made by Ian Roberts of Waterloo University, and details are described in a preprint on arXiv. More analysis is needed to confirm the classification, but early signs strongly suggest this object is indeed a jellyfish galaxy.

What Are Jellyfish Galaxies?

According to NASA, jellyfish galaxies are so named because of the long, trailing streams of gas and young stars that extend from one side of the galaxy. This phenomenon occurs when a galaxy moves rapidly through the hot, dense gas in a cluster, and ram pressure strips material away. The stripped gas forms a wake behind the galaxy, and this wake often lights up with bursts of new star formation. At the same time, the process can deprive the galaxy’s core of gas, potentially slowing star formation in the galaxy’s center.

Because the jellyfish stage is short-lived on cosmic timescales, astronomers rarely catch galaxies in this act. Studying jellyfish galaxies gives scientists insight into how dense environments affect galaxy evolution and star formation.

Discovery and Future Research

The researchers caution that the galaxy’s apparent “tentacles” may partly be an artifact of the imaging method. If confirmed, this object (COSMOS2020-635829) would be the most distant known jellyfish galaxy, offering a rare glimpse of how ram pressure stripping and cluster-driven quenching operated in the early cosmos. As the study authors note, finding a jellyfish at z>1 reinforces the idea that these environmental effects were already at work near the peak of cosmic star formation.

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Mars Dust Devils May Spark Lightning, Might Pose Risks to Rovers: Study

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Mars Dust Devils May Spark Lightning, Might Pose Risks to Rovers: Study

Dust devils on Mars – swirling columns of dust and air that often scour the Red Planet’s surface – may be crackling with electricity, a new computer-modeling study suggests. Researchers led by Varun Sheel simulated how Mars’s dry atmosphere and frictional dust collisions charge up grains inside a vortex. They found these fields could grow so strong that brief lightning-like discharges might occur. This electrification is a concern for surface missions, since charged dust could cling to rover wheels, solar panels and antennas, blocking sunlight and interfering with communications.

Formation and Features of Martian Dust Devils

According to the study, dust devils form when the Sun heats Mars’s surface, causing warm air to rise and spin into vortices. Colder air rushes inward along the ground, stretching the rising column upward and whipping dust high into the sky. Because Mars has lower gravity and a thinner atmosphere than Earth, its dust devils can tower much higher, three times larger than storms on Earth. NASA’s Viking mission first detected Martian dust devils; later rovers like Curiosity and Perseverance have filmed them sweeping across the dusty plains. These whirlwinds clean off solar panels – as happened with Spirit in 2005 – but more often they stir up fine dust that can coat instruments.

Electrification and Risks to Rovers

Dust grains in Martian whirlwinds can pick up charge through collisions (a triboelectric effect). Sheel’s models predict that this charge separation can create strong electric fields inside a dust devil. These fields could even exceed Mars’s atmospheric breakdown threshold (around 25 kV/m), enough to spark lightning in the vortex. NASA’s Perseverance rover recorded what appears to be a small triboelectric discharge when a dust devil passed overhead.

Even without lightning, any static buildup is problematic. As planetary scientist Yoav Yair notes, “Electrified dust will adhere to conducting surfaces such as wheels, solar panels and antennas,” potentially reducing sunlight reaching panels and jamming communications. Rovers may need new design features or procedures to handle this unusual Martian weather.

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