NASA and the European Space Agency (ESA) are scheduled to conduct a major spacewalk outside the International Space Station (ISS) on Tuesday, August 25, 2026, as astronauts continue work to replace a space-to-ground communications antenna. 

NASA astronaut Anil Menon and ESA astronaut Sophie Adenot will venture outside the station to complete the antenna replacement work that began during their August 18 spacewalk. During that earlier operation, the astronauts successfully removed the failed antenna but could not install its replacement after electrical connections and bolts took longer than expected to disconnect. 

According to NASA, Menon will use the Canadarm2 robotic arm to retrieve the spare antenna, which Adenot will release from an external platform. The astronauts will then install the replacement on the station's Z1 truss above the Unity module and connect the electrical and data lines required to restore the high-speed communications system. 

If sufficient time remains, the astronauts may also replace a retroreflector on the forward port of the Harmony module. The device helps provide navigation data for visiting spacecraft.

Spacewalk Timing

NASA's live coverage of the August 25 spacewalk is scheduled to begin at 7:00 a.m. EDT, while the spacewalk itself is expected to begin at approximately 8:35 a.m. EDT and last around six and a half hours. 

For viewers in India, the NASA coverage will begin in the late afternoon in IST, with the spacewalk itself beginning in the evening. Exact viewing times can vary slightly depending on the operational timeline.

The operation is part of ongoing maintenance and upgrades aboard the ISS. NASA has also outlined additional spacewalk work for early September, although the need for that operation could depend on how much work is completed during the August 25 activity. 

Why the Antenna Matters

The antenna being replaced is part of the station's communications infrastructure, providing high-data-rate links between the ISS and NASA's communications relay network. NASA said the station currently has another fully functional space-to-ground antenna, but restoring redundancy remains important for reliable station operations. 

The August 25 operation will also mark another milestone for Adenot, who became the first French woman to conduct a spacewalk during the August 18 mission. 

NASA will provide live coverage of the spacewalk through its official streaming platforms.

Speaking before graduating students, researchers and academic leaders, the minister said institutions such as NISER are not merely awarding degrees but are carrying forward a legacy of scientific excellence, innovation and national service. He urged young graduates to build upon the vision of renowned nuclear scientist Dr. Homi Jehangir Bhabha and contribute to India's scientific and technological advancement.

The convocation ceremony was attended by Vice President C. P. Radhakrishnan, Odisha Governor Dr. Hari Babu Kambhampati, Chief Minister Mohan Charan Majhi, Union Education Minister Dharmendra Pradhan and several senior scientists, academicians and policymakers. A total of 260 students from Integrated MSc, MSc-PhD, MSc and PhD programmes received their degrees during the event.

Dr. Singh said the occasion represented the transfer of responsibility from one generation of scientists to the next. He noted that the graduates would be expected to contribute not only to scientific research but also to national development priorities in the decades ahead.

Highlighting India's progress in the atomic energy sector, the minister said the country's nuclear programme, originally envisioned by Dr. Bhabha for peaceful purposes, has entered a new phase under the leadership of Prime Minister Narendra Modi. According to him, reforms introduced in recent years have strengthened indigenous capabilities and encouraged greater self-reliance in strategic technology sectors.

He pointed to the development of India's first Prototype Fast Breeder Reactor as a significant milestone in the country's nuclear journey. The project, he said, reflects India's growing scientific capability and its long-term commitment to energy security.

The minister also linked scientific advancement with India's broader development ambitions. He said the 260 graduating students would become part of a larger national effort aimed at transforming India into a developed nation by 2047 while pursuing sustainable growth and environmental commitments.

Dr. Singh stressed that scientific innovation would be central to addressing future challenges, including energy demands, climate concerns and technological competitiveness. He said the government expects young researchers and innovators to develop solutions that support both economic growth and sustainability.

Referring to India's nuclear energy roadmap, he said the country's installed nuclear power generation capacity currently stands at 8,780 MW and is targeted to increase to 22,380 MW by 2032. Expanding clean energy infrastructure, he noted, remains a key component of India's long-term energy strategy.

The minister also highlighted recent policy initiatives aimed at strengthening the country's scientific ecosystem. He referred to the Union Budget announcement regarding the development of four Rare Earth Corridors across the country, including one in Odisha. The initiative is expected to support critical mineral supply chains and strengthen India's strategic manufacturing capabilities.

Dr. Singh further praised the National Education Policy (NEP) 2020, saying it has encouraged interdisciplinary learning, research and innovation. He noted that institutions such as NISER have emerged as important centres for advanced scientific education and research under the evolving academic framework.

Concluding his address, the minister congratulated the graduating students and encouraged them to view their degrees as a commitment to nation-building. He expressed confidence that the new generation of scientists would help shape an innovative, self-reliant and globally competitive India in the years ahead.

ISRO Mission Mitra: Psychological Drills Begin in Ladakh

Space agency initiates 'Mission Mitra' to evaluate astronaut endurance and mental resilience ahead of the historic Gaganyaan human spaceflight.

The Indian Space Research Organisation (ISRO) has officially moved into a critical phase of its human spaceflight program with the commencement of Mission Mitra. Set against the unforgiving, high-altitude terrain of Ladakh, this specialized analogue mission serves as a rigorous testing ground for the mental and physical limits of India’s future space travelers. As the country edges closer to its first crewed mission, the focus has shifted toward the psychological intricacies of survival in extreme isolation.

Simulating Deep Space Isolation

Mission Mitra, an acronym for Mapping of Interoperable Traits & Reliability Assessment, is designed to mimic the profound isolation of a spacecraft. In the desolate stretches of Ladakh, participants are subjected to conditions that replicate the sensory deprivation and confined living quarters of the Gaganyaan module. This latest news update from the space agency highlights a transition from purely technical hardware testing to the human element of the mission.

Testing Mental Fortitude

While technical proficiency is a prerequisite for any astronaut, the psychological toll of being sequestered from Earth is a different challenge altogether. Experts are utilizing this mission to monitor how human subjects manage stress, fatigue, and the cognitive load of complex tasks when resources are scarce. The objective is to ensure that when the final countdown for the Gaganyaan Mission begins, the crew is mentally impenetrable.

Ladakh as Analogue Terrain

The choice of Ladakh is far from coincidental. With its thin atmosphere, sub-zero temperatures, and barren landscape, the region offers a "space-equivalent" environment. These terrestrial conditions allow ISRO to observe physiological changes and decision-making speeds in a low-oxygen setting. Sources indicated that the data gathered here will be instrumental in finalizing the psychological support protocols for the actual orbital flight.

Enhancing Team Synergy

A primary focus of Mission Mitra is the evaluation of interpersonal dynamics under duress. In the vacuum of space, a minor disagreement can escalate into a mission-critical error. By placing team members in high-pressure "survival" scenarios in the Himalayas, ISRO psychologists are studying communication patterns and trust-building exercises. This ensures that the team operates as a single, cohesive unit despite the mounting pressure of the mission.

Global Training Standards

This initiative aligns India with global benchmarks set by agencies like NASA and the ESA. By adopting high-fidelity analogue simulations, ISRO is narrowing the gap between theoretical training and the visceral reality of space. According to officials, these simulations are vital for identifying "interoperable traits"—the ability of an astronaut to switch roles and support peers seamlessly during emergencies.

The Gaganyaan Roadmap

The Gaganyaan Mission remains India's most ambitious leap in the 21st century, aimed at demonstrating indigenous capability to send humans to a Low Earth Orbit (LEO) of 400 km. While the rockets and crew modules have undergone several successful tests, the human component is now being polished. Mission Mitra acts as the bridge between the physical machine and the psychological readiness of the person inside it.

Future Mission Outlook

As the Ladakh trials progress, the findings will be integrated into the final training curriculum at the Astronaut Training Facility in Bengaluru. The success of these simulations will determine the final readiness of the four selected test pilots. This Public Interest Story underscores India’s meticulous approach to safety, ensuring that the first Indians launched from home soil are prepared for every eventuality, both seen and unseen.