Indian-origin NASA astronaut Anil Menon has successfully completed his first-ever spacewalk outside the International Space Station (ISS), marking a significant milestone in his astronaut career. Alongside veteran NASA astronaut Jessica Meir, Menon carried out critical maintenance and upgrade work aimed at preparing the orbital laboratory for the installation of new roll-out solar arrays that will enhance the station's power generation capacity.

The six-hour and 27-minute spacewalk began at 8:33 a.m. EDT (6:03 p.m. IST) on Thursday and concluded at 3:00 p.m. EDT (12:30 a.m. IST Friday). According to NASA, it was the 281st spacewalk conducted in support of the International Space Station, the first for Menon, and the sixth for Meir.

Preparing ISS for More Power

The astronauts exited the station through the Quest airlock and focused their work on the 3B power channel located on the Starboard-6 truss of the ISS.

Their primary task involved installing mounting hardware that will support the future deployment of International Space Station Roll-Out Solar Arrays (IROSA). These advanced solar panels are designed to increase the station's electrical output, ensuring sufficient power for scientific experiments, onboard systems, and the eventual controlled deorbit of the aging space station.

NASA has already installed six IROSA units since 2021, with two additional arrays scheduled to arrive later this year.

Cable Routing and Structural Upgrades

During the mission, Menon worked from an articulating portable foot restraint that allowed him to safely access the station's exterior framework. Together, the astronauts routed electrical cables that will connect the upcoming solar arrays to the station's power system.

The duo also installed protective multi-layer insulation over structural components to safeguard the hardware from extreme temperatures and radiation in space.

NASA said these upgrades are an important step toward extending the station's operational capabilities while supporting future missions.

A Moment Above Earth

The spacewalk also featured a memorable moment when Jessica Meir pointed out the Moon to Menon while they worked outside the station.

"Anil, you can see the moon," Meir said over the communication channel.

Responding with enthusiasm, Menon replied, "Yeah, I see it. Thanks for the heads-up. I can see a future moon base there."

The exchange highlighted NASA's long-term ambitions under the Artemis programme, which aims to establish a sustained human presence on the Moon before eventually sending astronauts to Mars.

More Spacewalks Scheduled

NASA has planned two additional spacewalks for the Expedition 75 crew later this month.

On August 13, astronauts will replace a Space-to-Ground antenna, a key communications component that enables data transmission between the ISS and Mission Control in Houston.

Another spacewalk is scheduled for August 25, during which astronauts will continue power-system upgrades, connect data-relay cables, and replace a navigation aid used by visiting spacecraft docking with the station.

These maintenance missions form part of NASA's broader strategy to keep the International Space Station operational while preparing for its eventual retirement and controlled deorbit in the coming years.

The International Space Station (ISS), which has served as humanity's primary scientific outpost in low-Earth orbit for over 25 years, has formally entered its twilight phase. The National Aeronautics and Space Administration (NASA) has detailed an extensive operational blueprint to safely retire and deorbit the massive laboratory by 2030. The space agency has committed nearly $1 billion (approximately ₹9,500 crore) to execute the high-stakes atmospheric re-entry, ensuring the football-field-sized structure does not pose a threat to populated areas on Earth.

Shifting Focus From Aging Outpost

The decision comes as the orbital laboratory shows unavoidable signs of structural wear and tear. Having significantly outlasted its original intended design life, the station has recently been hit by minor structural leaks and constant maintenance challenges. According to officials, the recurring expenditure required to keep the aging platform operational has become a major fiscal strain. By bringing the curtains down on the ISS, NASA intends to free up critical resources and technical focus for its upcoming deep-space exploration targets, specifically the Artemis Moon missions and future crewed voyages to Mars.

SpaceX to Build Specialized Tug

To pull off the complex maneuver, the US space agency has selected Elon Musk’s SpaceX to develop a heavily modified, high-thrust version of the Dragon capsule, designated as the US Deorbit Vehicle. This specialized space tug will dock with the 450,000-kilogram structure to systematically lower its altitude. Initial reports indicate that the operational deorbit sequence will begin gradually around 2028, with the final, definitive atmospheric plunge scheduled for late 2030 or early 2031.

Gravity and Friction to Melt Modules

Engineering teams expect the final descent to be a highly dramatic, multi-staged event. As the spacecraft pushes the station into the denser layers of Earth's atmosphere, the immense friction will trigger rapid heating. The massive solar arrays and external radiators will rip away first, followed by the progressive fragmentation of the main truss and modules. While the vast majority of the aluminium and titanium structure will vaporize or melt under temperatures reaching thousands of degrees, denser and more heat-resistant hardware components are still expected to survive the thermal shield of the atmosphere.

Final Resting Place At Point Nemo

To guarantee zero casualties on the ground, local authorities confirmed that the surviving debris will be directed exclusively toward Point Nemo in the South Pacific Ocean. Known widely across global aerospace sectors as the "spacecraft cemetery," this remote oceanic location is the furthest point on Earth from any human civilization or landmass. Maritime safety protocols will be strictly enforced during the drop window to keep international shipping vessels clear of the target zone, which has safely swallowed over 300 pieces of decommissioned space hardware since 1971.

End of Monolithic Space Lab Era

The retirement marks the conclusion of an unprecedented era of geopolitical harmony in orbit. Since November 2000, the station has maintained a continuous human presence, operating as a collaborative triumph between the US, Russia, Europe, Japan, and Canada. Over 250 astronauts from 19 nations have lived and worked inside its pressurized modules, conducting thousands of microgravity experiments. However, the future landscape of low-Earth orbit will look entirely different, shifting from a singular state-funded monolith to a fragmented ecosystem of commercial enterprises.

Transitioning to Commercial Outposts

As the final plunge for International Space Station nears, NASA is actively funding private aerospace firms to prevent a gap in orbital research capabilities. Commercial entities are racing to fill the void, with projects like Vast’s Haven-2, Axiom Space’s modular station, and Blue Origin’s Orbital Reef currently under development. Concurrently, China’s fully operational Tiangong space station continues to expand its footprint, while the Indian Space Research Organisation (ISRO) remains on track with preliminary designs to deploy India's own indigenous space station by 2035.