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- 1Astronaut shares shirtless ISS photos taken for medical researchβΌAstronaut shares shirtless ISS photos from medical research
An astronaut aboard the International Space Station has shared shirtless photos taken as part of medical research conducted in orbit. Such images are typically used to monitor how long-duration spaceflight affects muscle, bone and body composition in microgravity. The photos have drawn attention because they offer a rare, candid look at the physical demands of living in space and the routine science conducted on the station.
- 2ISS National Lab picks semiconductors and biotech startups for new cohortβΌSemiconductors, biomanufacturing and dual-use tech fill ISS National Labβs startup cohort
The ISS National Lab has announced its latest startup cohort, with selected companies focused on semiconductors, biomanufacturing and dual-use technologies. The program gives emerging firms access to the International Space Station's microgravity environment for research and product development, reflecting growing commercial interest in space-based manufacturing and national-security-adjacent innovation.
- 3Varda Space Industries Launches Two Spacecraft to Orbit SimultaneouslyβVarda Space Industries Launches Two Vehicles to Orbit at the Same Time
Varda Space Industries launched two vehicles into orbit at the same time, a first for the California-based space manufacturing company. The dual launch marks a step up in cadence for the firm, which builds reusable reentry capsules for producing materials in microgravity. Further details about the missions, their payloads and intended landing sites have not yet been released.
- 4El Segundo Startup Aims to Manufacture Medicine in SpaceβThis El Segundo Startup Wants to Manufacture Medicine in Space
An El Segundo-based startup is working to develop facilities for manufacturing medicine in space, taking advantage of microgravity conditions that can improve how certain pharmaceuticals are produced. The company joins a growing wave of Southern California space ventures pursuing commercial uses of orbit, and the idea is drawing attention as in-space manufacturing moves from concept toward real business.
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The question of whether artificial gravity could ever be created aboard a spacecraft is being explored in science coverage. Physicists note that rotation is the most widely studied approach β spinning a spacecraft or station so centrifugal effects mimic gravity β while alternatives like linear acceleration or electromagnetic systems face major engineering and energy hurdles. For now, astronauts on long missions rely on microgravity countermeasures such as daily exercise.
- 6Microgravity Simulation Reveals Unexpected Changes in Human Cell DNAβScientists Simulated Microgravity in Human Cells and Found Something Unexpected About DNA
Scientists simulated microgravity conditions in human cells in the laboratory and discovered unexpected effects on DNA. The findings add to growing evidence that altered gravity can influence how genetic material behaves, with implications for astronaut health and long-duration space missions. Details of the study and the exact nature of the DNA changes were not specified in available coverage.