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Science
15 March 2025

Takuya Onishi Launches On Historic ISS Mission

Japanese astronaut begins second stint aboard the International Space Station, aiming for scientific breakthroughs.

On March 15, 2025, the SpaceX Crew Dragon No. 10 blasted off from the Kennedy Space Center in Florida, heralding another chapter for Japanese astronaut Takuya Onishi. Launching at 8:03 AM JST, Onishi and three other astronauts embarked on their mission targeting the International Space Station (ISS) for what is expected to be approximately six months of scientific exploration and international collaboration.

This mission marks Onishi's second stay aboard the ISS since his first flight back in 2016. During this important mission, he is set to make history as the third Japanese astronaut to hold the title of ISS commander, following pioneers Koichi Wakata and Akihiko Hoshide. Onishi's responsibilities will include overseeing the operations of the ISS and ensuring the safety of the crew, showcasing Japan's continued contributions to space exploration.

The launch, initially scheduled for March 12, faced delays due to mechanical issues with ground support systems, but it was successfully executed after the necessary adjustments were made. Approximately ten minutes after liftoff, the Crew Dragon spacecraft separated from its Falcon 9 rocket and entered its planned orbit, setting the stage for its scheduled docking with the ISS on the afternoon of March 16.

Onishi is joined by two NASA astronauts and one Russian cosmonaut, adding to the collaborative effort of international space exploration. During their half-year mission, the crew will be engaged in various experiments, one of which involves genetic research on Drosophila—commonly known as fruit flies—carrying mutations associated with pancreatic cancer. This study will examine the influence of microgravity on the efficacy of cancer treatments, aiming to glean insights beneficial for future biomedical applications.

Another significant project Onishi will be involved with includes verification experiments on carbon dioxide removal technology, which is pivotal for lunar missions as part of NASA's Artemis program. The Artemis program aims to return humans to the Moon and establish sustained exploration by creating habitats like the Lunar Gateway, where this technology will be tested. These advancements not only contribute to lunar exploration but also have the potential for broader applications on Earth.

The return of the astronauts scheduled to be replaced by Onishi and his colleagues has drawn public attention. Last year, two NASA astronauts were left aboard the ISS after suffering complications with a spacecraft developed by Boeing, which prevented their return. These astronauts were reassigned as formal crew members tasked with conducting experiments. NASA's decision reflects the esteem and urgency of the situation as they looked to resolve this issue through SpaceX's successful crew capsule.

The political divide has been evident with criticism from former President Trump, who referred to the situation where the NASA astronauts were termed 22abandoned22 by the Biden administration. During this period, Astronaut Barry Wilmore, one of those affected, clarified through CNN interviews earlier this year, stating, 22I don't feel abandoned or left behind.22 This highlights the nuanced and often contentious dialogue surrounding space program management and political leadership.

With Onishi's launch complete, he and his team are now set to contribute to the extensive body of scientific knowledge gathered aboard the ISS. Their work will not only advance Japan's capabilities within the global space community but also push the boundaries of humanity’s reach beyond Earth. NASA, JAXA, and their partners continue to forge pathways leading to discoveries and innovations necessary for life on other worlds.

Onishi's upcoming responsibilities as ISS commander will require adept leadership and coordination among international crew members, establishing protocols to maintain safety and efficiency. The significance of this international collaboration cannot be overstated, especially as nations work together to explore space more effectively.

Looking forward, this mission exemplifies the blend of science, politics, and international cooperation. With human missions to the Moon and Mars on the horizon, the stakes are higher than ever, and Onishi's contributions could pave the way for future scientific breakthroughs. The significance of such missions resonates on Earth, inspiring future generations of scientists, engineers, and explorers to reach beyond what once seemed possible.

With the successful launch of Crew Dragon No. 10, Takuya Onishi and his crew are not just embarking on another mission; they are part of history, contributing to the ever-evolving narrative of space exploration and humanity's quest for knowledge and discovery. The hope is to continue building on the collaborative efforts of nations, transcending boundaries and working toward common goals as they chart the future of human space exploration.