Summary Points
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Mass Measurement in Microgravity: NASA astronaut Johnny Kim explored how astronauts measure their mass using specialized equipment, like Russia’s Body Mass Measurement Device, relying on Newton’s Second Law (F=ma).
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Ongoing Scientific Research: The Expedition 73 crew conducted important experiments, including studying particle behavior in droplets and testing ultrasound devices for medical imaging.
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Space Station Maintenance: The crew upgraded the ISS’s orbit in preparation for new arrivals and set up temporary accommodations while preparing spacesuit components for return to Earth.
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Stellar Stem Cells Mission: Astronaut Mike Fincke initiated research on how microgravity influences stem cell development, aimed at advancing regenerative medicine.
NASA Astronaut Demonstrates How to ‘Weigh’ Yourself in Space
This week aboard the International Space Station (ISS), astronauts tackled some unique challenges of living and working in microgravity. From Nov. 17 to 21, the Expedition 73 crew engaged in essential tasks, including one that many people take for granted: weighing themselves.
NASA astronaut Johnny Kim shared a fascinating observation on social media. He explained that although astronauts float in space and feel weightless, their mass remains unchanged. “In space, we’re weightless, but not massless,” Kim noted. To measure their mass, astronauts use specialized equipment like the Body Mass Measurement Device.
This device employs Newton’s Second Law: F = ma. Essentially, it applies a known force, measures the resulting acceleration, and calculates mass. Kim’s post highlighted the creativity and innovation required to perform everyday science in orbit.
Additionally, the Expedition 73 crew continued exciting research. Flight engineer Mike Fincke investigated how particles attach to liquid droplets in microgravity. He used a fluorescence microscope to study samples, contributing valuable insight to scientists back on Earth.
Meanwhile, Zena Cardman, also a flight engineer, tested a new ultrasound device. This technology can scan crew members’ hearts and veins, providing critical health insights.
In addition to scientific projects, the team focused on the ISS’s maintenance. Recent tasks included adjusting the space station’s altitude in preparation for an incoming crew. On Nov. 19, the Russian cargo capsule boosted the ISS’s orbit, enhancing its operational capacity.
The crew also prepared for the arrival of three new members by setting up temporary sleeping accommodations. They documented and packed components of spacesuits meant for return to Earth, highlighting the logistical efforts required for extended space missions.
As of Nov. 21, seven astronauts were aboard the ISS, ensuring continuous human presence in space for over 25 years. Their work, ranging from research to maintenance, exemplifies the ongoing evolution of technology and health in extreme environments. Each task contributes to our understanding of life beyond Earth and improvements in technology that can benefit life on our planet.
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