<h2 data-start="139" data-end="235"><strong data-start="141" data-end="235">India’s Hero Returns: Shubhanshu Shukla and the Axiom-4 Crew Conclude Historic ISS Mission</strong></h2> <p data-start="237" data-end="285"><strong data-start="237" data-end="285">Updated: July 14, 2025 | By Express Web Desk</strong></p> <p data-start="287" data-end="771">In a defining moment for India’s space exploration journey, <strong data-start="347" data-end="382">Group Captain Shubhanshu Shukla</strong>, India’s second astronaut in space and the first to visit the <strong data-start="445" data-end="482">International Space Station (ISS)</strong>, is set to return to Earth along with the Axiom-4 crew. The spacecraft, a <strong data-start="557" data-end="579">SpaceX Crew Dragon</strong>, successfully undocked from the ISS on <strong data-start="619" data-end="645">July 14 at 4:35 PM IST</strong> and is scheduled to <strong data-start="666" data-end="770">splash down in the Pacific Ocean off the coast of California at approximately 3:00 PM IST on July 15</strong>.</p> <hr data-start="773" data-end="776" /> <h2 data-start="778" data-end="822">🚀 <strong data-start="784" data-end="822">Mission Update: Undocking from ISS</strong></h2> <p data-start="824" data-end="1141">The Axiom-4 crew, including Shukla, boarded the Crew Dragon spacecraft early Monday morning. The <strong data-start="921" data-end="963">hatch was closed at around 2:25 PM IST</strong>, officially ending their tenure aboard the ISS. By <strong data-start="1015" data-end="1030">4:30 PM IST</strong>, the spacecraft detached from the <strong data-start="1065" data-end="1083">Harmony module</strong>, initiating its slow departure from the orbiting station.</p> <p data-start="1143" data-end="1475">Ten minutes later, the <strong data-start="1166" data-end="1185">"Depart 1 Burn"</strong> was successfully executed, which gently propelled the spacecraft away from the ISS at a speed of <strong data-start="1283" data-end="1295">1.25 m/s</strong>. This burn initiated the spacecraft's journey toward Earth’s atmosphere. The splashdown process includes multiple deorbit burns and parachute deployments for a soft ocean landing.</p> <hr data-start="1477" data-end="1480" /> <h2 data-start="1482" data-end="1527">🌍 <strong data-start="1488" data-end="1527">Splashdown Timing and Safety Window</strong></h2> <p data-start="1529" data-end="1814">According to the Union Minister of Science & Technology, <strong data-start="1586" data-end="1608">Dr. Jitendra Singh</strong>, the scheduled splashdown will take place around <strong data-start="1658" data-end="1684">3:00 PM IST on July 15</strong>, with a margin window of approximately <strong data-start="1724" data-end="1735">±1 hour</strong>, depending on weather and sea conditions off the coast of Southern California.</p> <hr data-start="1816" data-end="1819" /> <h2 data-start="1821" data-end="1882">🔬 <strong data-start="1827" data-end="1882">Scientific Milestones: India’s Experiments in Space</strong></h2> <p data-start="1884" data-end="2196">One of the major highlights of the Axiom-4 mission has been its focus on <strong data-start="1957" data-end="1995">space-based scientific experiments</strong>, several of which are designed to benefit India’s upcoming <strong data-start="2055" data-end="2094">Gaganyaan human spaceflight program</strong>. With support from <strong data-start="2114" data-end="2122">ISRO</strong>, Shukla conducted <strong data-start="2141" data-end="2184">seven critical microgravity experiments</strong>, including:</p> <ol data-start="2198" data-end="2917"> <li data-start="2198" data-end="2382"> <p data-start="2201" data-end="2382"><strong data-start="2201" data-end="2222">Tardigrades Study</strong><br data-start="2222" data-end="2225" />Investigating the survivability, reproduction, and genetic changes of water bears (tardigrades) in microgravity to understand life-support sustainability.</p> </li> <li data-start="2384" data-end="2548"> <p data-start="2387" data-end="2548"><strong data-start="2387" data-end="2412">Myogenesis Experiment</strong><br data-start="2412" data-end="2415" />Research on muscle-cell growth using precursor cells and flavonoids to evaluate muscle regeneration under zero-gravity conditions.</p> </li> <li data-start="2550" data-end="2720"> <p data-start="2553" data-end="2720"><strong data-start="2553" data-end="2573">Seed Germination</strong><br data-start="2573" data-end="2576" />Observation of <strong data-start="2594" data-end="2615">methi (fenugreek)</strong> and <strong data-start="2620" data-end="2642">moong (green gram)</strong> seed sprouting in space to study biomass potential and nutrient availability.</p> </li> <li data-start="2722" data-end="2917"> <p data-start="2725" data-end="2917"><strong data-start="2725" data-end="2757">Cyanobacteria Centrifugation</strong><br data-start="2757" data-end="2760" />Studying two different strains of photosynthetic cyanobacteria to evaluate oxygen and biofuel production in space, which are vital for long-term missions.</p> </li> </ol> <p data-start="2919" data-end="3129">5–7. <strong data-start="2924" data-end="2965">Microalgae Experiments & Bone Studies</strong><br data-start="2965" data-end="2968" />Investigations into how microalgae can contribute to <strong data-start="3024" data-end="3050">food, fuel, and oxygen</strong> generation in space, along with radiation and bone-density impact assessments.</p> <p data-start="3131" data-end="3327">As of <strong data-start="3137" data-end="3148">July 12</strong>, <strong data-start="3150" data-end="3187">four out of the seven experiments</strong> were already completed and prepared for return. The remaining three experiments were still under final observation during the journey home.</p> <hr data-start="3329" data-end="3332" /> <h2 data-start="3334" data-end="3381">🗣️ <strong data-start="3341" data-end="3381">Shubhanshu Shukla’s Farewell Message</strong></h2> <p data-start="3383" data-end="3493">In an emotional and patriotic address recorded aboard the ISS, Shukla paid tribute to India’s legacy in space:</p> <blockquote data-start="3495" data-end="3766"> <p data-start="3497" data-end="3766">“41 years ago, an Indian came to space and told us how India looks from up above. Today’s India looks ambitious from space, today’s India looks fearless, today’s India looks confident, today’s India looks full of pride… today’s India still looks ‘saare jahan se acha’.”</p> </blockquote> <p data-start="3768" data-end="3872">His message reflected both national pride and the beginning of a bold new chapter in Indian spaceflight.</p> <hr data-start="3874" data-end="3877" /> <h2 data-start="3879" data-end="3922">👨🚀 <strong data-start="3888" data-end="3922">The Axiom-4 International Crew</strong></h2> <p data-start="3924" data-end="4046">The Axiom-4 mission has been notable not only for its scientific output but also for its international team of astronauts:</p> <ul data-start="4048" data-end="4488"> <li data-start="4048" data-end="4167"> <p data-start="4050" data-end="4167"><strong data-start="4050" data-end="4073">Peggy Whitson (USA)</strong> – Commander and former NASA astronaut with the most cumulative time in space by any American.</p> </li> <li data-start="4168" data-end="4276"> <p data-start="4170" data-end="4276"><strong data-start="4170" data-end="4213">Group Captain Shubhanshu Shukla (India)</strong> – Pilot and former Indian Air Force officer representing ISRO.</p> </li> <li data-start="4277" data-end="4374"> <p data-start="4279" data-end="4374"><strong data-start="4279" data-end="4308">Sławosz Uznański (Poland)</strong> – Mission specialist and first Polish astronaut to visit the ISS.</p> </li> <li data-start="4375" data-end="4488"> <p data-start="4377" data-end="4488"><strong data-start="4377" data-end="4401">Tibor Kapu (Hungary)</strong> – Mission specialist, marking Hungary’s re-entry into human spaceflight after decades.</p> </li> </ul> <p data-start="4490" data-end="4617">This mission marks the <strong data-start="4513" data-end="4557">first government-sponsored space mission</strong> for India, Poland, and Hungary to the ISS in over 40 years.</p> <hr data-start="4619" data-end="4622" /> <h2 data-start="4624" data-end="4679">🇮🇳 <strong data-start="4632" data-end="4679">India’s Leap into the Future of Spaceflight</strong></h2> <ul data-start="4681" data-end="5224"> <li data-start="4681" data-end="4864"> <p data-start="4683" data-end="4864"><strong data-start="4683" data-end="4701">Historic First</strong>: Shubhanshu Shukla is now <strong data-start="4728" data-end="4778">India’s first astronaut to stay aboard the ISS</strong>, following the legacy of <strong data-start="4804" data-end="4821">Rakesh Sharma</strong>, who flew aboard a Soviet mission in 1984.</p> </li> <li data-start="4865" data-end="5043"> <p data-start="4867" data-end="5043"><strong data-start="4867" data-end="4908">Scientific Contributions to Gaganyaan</strong>: The data collected during Axiom-4 will significantly support <strong data-start="4971" data-end="5000">India’s Gaganyaan mission</strong>, expected to launch <strong data-start="5021" data-end="5042">between 2026–2027</strong>.</p> </li> <li data-start="5044" data-end="5224"> <p data-start="5046" data-end="5224"><strong data-start="5046" data-end="5069">Global Partnerships</strong>: The mission was a result of collaboration between <strong data-start="5121" data-end="5136">Axiom Space</strong>, <strong data-start="5138" data-end="5148">SpaceX</strong>, <strong data-start="5150" data-end="5158">NASA</strong>, and <strong data-start="5164" data-end="5172">ISRO</strong>, showcasing the power of international cooperation.</p> </li> </ul>
