Science

Astronauts Make Groundbreaking Discoveries Aboard SpaceX Dragon on the ISS!

2025-09-05

Author: Rajesh

A Week of Innovation and Exploration on the ISS

The International Space Station (ISS) has been buzzing with activity this past week as Expedition 73 delves into crucial scientific studies and intriguing outreach events, all while riding a wave of excitement from a SpaceX Dragon cargo delivery.

Engaging the Next Generation of Explorers

In a fascinating interaction, students from a New York computer school had the opportunity to pose their burning questions to Expedition 73 crewmates: NASA's Jonny Kim and JAXA's Kimiya Yui. Their live Q&A session on September 5 sparked discussions on the essence of exploration. Yui expressed, "Humankind always craves a frontier to thrive, which drives our exploration efforts." Meanwhile, Kim emphasized the motivational aspect of venturing into the unknown, highlighting its importance in sparking curiosity among youth.

Hearts in Space vs. Home on Earth

One lively question during the session asked whether they would prefer living in space or on Earth. Kim candidly replied, "I enjoy space, the spectacular views of Earth, and the engaging work we do here. However, home is where the heart is. I’d choose Earth because that’s where my loved ones are." Such heartfelt sentiments remind us of the personal connections that astronauts value despite the cosmic allure.

Cutting-Edge Research Highlights

The research week was packed! The Expedition 73 team executed groundbreaking studies, such as the 'Cardiobreath' project, where astronaut Mike Fincke gathered vital data on exercise regimes that could reshape astronaut physical training. Simultaneously, Jonny Kim worked with bone stem cells in a study focused on the perplexing issue of microgravity-induced bone loss, which could provide crucial insights for future space missions.

Innovative Station Maintenance

In addition to research, the crew kept the space station running smoothly with essential maintenance tasks. Kimiya Yui upgraded the Multi-use Variable-g Platform, enhancing its capacity for fascinating experiments under varying gravitational conditions. He also conducted a thorough review of the 34D exercise device, ensuring it's ready for a range of physical training exercises.

A Historic Reboost and Cargo Arrival

This week also marked a significant milestone. Ground controllers successfully executed a reboost operation using the new Dragon reboost kit, elevating the station's orbit for the first time with a SpaceX spacecraft. The crew busily unloaded crucial science and logistics supplies from the recently docked CRS-33 Dragon cargo ship, ensuring their research missions are well-equipped.

The Numbers Game on the ISS

As of August 15, the ISS houses seven crew members: Expedition 73 commander Sergey Ryzhikov and cosmonauts Alexey Zubritsky and Oleg Platonov represent Roscosmos, while NASA's Jonny Kim, Zena Cardman, and Mike Fincke join JAXA’s Kimiya Yui as flight engineers. The station is currently home to two crew and three cargo spacecraft, including the SpaceX Dragon 'Endeavour' and multiple Progress vehicles, a testament to international collaboration in space exploration.