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Astronauts

All articles tagged with #astronauts

Space medical scare could redefine long-duration missions
science10 hours ago

Space medical scare could redefine long-duration missions

NASA astronaut Mike Fincke experienced a sudden speech disturbance aboard the ISS and returned to Earth early on the SpaceX Crew-11 mission. While no formal diagnosis was disclosed, NASA and space medicine experts say the incident highlights how weightlessness and radiation pose complex health risks that may affect future deep-space missions. As agencies plan longer journeys to the Moon and Mars, there is growing emphasis on onboard medical capabilities, Earth‑linked support, and emerging tools like organ chips to monitor and tailor care for astronauts on extended missions.

via CNN|
#astronauts#deep-space#nasa
Hong Kong’s First Astronaut Joins China’s Shenzhou 23 Crew for a Year in Orbit
space-exploration2 days ago

Hong Kong’s First Astronaut Joins China’s Shenzhou 23 Crew for a Year in Orbit

China on May 24 will launch the three-person Shenzhou 23 crew—Zhu Yangzhu (commander), Zhang Zhiyuan (pilot) and Lai Ka-ying (payload specialist) from Hong Kong, who becomes Hong Kong’s first astronaut. One crewmember will spend a full year in orbit, a first for China, as the mission docks with the Tiangong space station. The flight, from Jiuquan, sets the stage for Shenzhou 24, which will include a Pakistani astronaut, while Shenzhou 21’s crew remains aboard Tiangong on an extended mission.

via Space|
#astronauts#china#hong-kong
Relativity in Real Life: The ISS Clocks Tick Slower, Astronauts Age Slightly
science9 days ago

Relativity in Real Life: The ISS Clocks Tick Slower, Astronauts Age Slightly

The ISS travels about 7.8 km/s, causing time dilation: its clocks run slightly slower than Earth clocks due to special relativity, while being higher in gravity would speed them up per general relativity. The net effect is a fraction-of-a-second aging difference for astronauts over six months, a result confirmed by atomic clocks and essential for GPS accuracy. The article also contrasts the relativistic effect with microgravity’s physiological impacts on astronauts, emphasizing that time is a local quantity tied to reference frames.

via Space Daily|
#astronauts#gps#relativity
Artemis II Crew Reveals the Playbook for Teamwork and Resilience
canada9 days ago

Artemis II Crew Reveals the Playbook for Teamwork and Resilience

Artemis II’s four-astronaut crew shared life lessons from their lunar flyby: build a close, communicative team, lean on behavioral health support, train for low-probability/high-stakes scenarios, and keep relationships with loved ones strong to stay calm and focused under pressure—emphasizing that failure isn’t feared but faced with proactive problem-solving and trust in each other.

via Global News|
#artemis-ii#astronauts#canada
Artemis II postflight: heat shield okay, SLS hits target, toilet glitch prompts checks
science1 month ago

Artemis II postflight: heat shield okay, SLS hits target, toilet glitch prompts checks

NASA’s initial postflight assessments find the Orion heat shield performed as expected with less char loss than Artemis I, and the SLS rocket achieved orbital insertion with splashdown about 2.9 miles from the target and an entry velocity near predictions. A toilet-system issue—urine vent line—was identified and is under investigation to prevent recurrence. Astronauts shared Earthset footage and noted vestibular readjustment after returning to gravity, as Artemis II serves as a critical step toward crewed lunar missions in 2027–2028.

via Engadget|
#artemis-ii#astronauts#nasa
Watkins to command SpaceX Crew-13 mission to the ISS
space1 month ago

Watkins to command SpaceX Crew-13 mission to the ISS

NASA named SpaceX Crew-13 for the ISS Expedition 75: commander Jessica Watkins, pilot Luke Delaney from Debary, Florida, with Canadian astronaut Joshua Kutryk and Roscosmos cosmonaut Sergey Teteryatnikov as mission specialists. Launch is no earlier than mid-September aboard SpaceX Falcon 9/Dragon, marking the 13th SpaceX crew rotation under NASA’s Commercial Crew Program. Watkins, a Crew-4 veteran with 170 days in space, will be the first NASA astronaut to fly twice on Dragon; the other two mission specialists are first-time space fliers. The crew will conduct science and tech demonstrations to advance Moon and Mars exploration.

via Spectrum News 13|
#astronauts#expedition75#iss
Astronauts' Gravity Sense Lingers After Months in Space
science1 month ago

Astronauts' Gravity Sense Lingers After Months in Space

A study of 11 astronauts (2 women, 9 men) over at least five months on the ISS found that the brain retains a gravity imprint that shapes how they grip and move objects in microgravity; on Earth, they tend to grip more firmly than needed and mispredict object mass, but movements quickly re-adapt after return. The research, published in The Journal of Neuroscience, highlights gradual neural reprogramming as the brain recalibrates to Earth's gravity, with some astronauts noting objects feel heavier even after re-entry.

via ScienceAlert|
#astronauts#gravity#microgravity
Gravity rewires astronauts' grip in space, with months-long readjustment on Earth
space1 month ago

Gravity rewires astronauts' grip in space, with months-long readjustment on Earth

A new study shows astronauts’ brains adapt to weightlessness by misreading gravity: in space they grip objects with more force than needed, and after returning to Earth it can take months to recalibrate. Researchers tracked grip force and movement in 11 ESA astronauts on Earth and in space, revealing sensory feedback reinterpretation due to gravity changes. The findings have safety implications for future missions, including spacewalks and robotic operations on the ISS and the Moon.

via Space|
#astronauts#gravity#grip
Artemis II crew describe ‘otherworldly’ moment behind the Moon during solar eclipse
science1 month ago

Artemis II crew describe ‘otherworldly’ moment behind the Moon during solar eclipse

Artemis II’s four-person crew recalled an overwhelming, “otherworldly” moment when the Moon passed between their Orion spacecraft and the Sun during a solar eclipse on the far side, a rare view encountered on a mission that took humans farther from Earth than any before. They described the unknown as scarier than the known, and the experience underscores NASA’s broader plans to land astronauts on the Moon and eventually establish a sustained lunar presence, including Artemis III’s docking in lunar orbit ahead of future surface missions.

via Yahoo|
#artemis-ii#astronauts#moon
Artemis II crew discuss Moon mission in live briefing
science1 month ago

Artemis II crew discuss Moon mission in live briefing

BBC’s live blog covers Artemis II’s media briefing with the four astronauts—Reid Wiseman, Victor Glover, Christina Koch and Jeremy Hansen—discussing the 10-day Moon mission, the intense re-entry, and how the flight informs future lunar missions (Artemis IV/V by 2028) and related health research; live viewing starts at 14:30 ET.

via BBC|
#artemis#astronauts#moon
Artemis II Returns: A Safe Homecoming Signals a New Lunar Era
science1 month ago

Artemis II Returns: A Safe Homecoming Signals a New Lunar Era

NASA’s Artemis II crew—Reid Wiseman, Victor Glover, Christina Koch, and Jeremy Hansen—returned safely to Earth aboard the Orion capsule Integrity after a lunar flyby, sharing their reflections, detailing the six-minute communications blackout during reentry, and highlighting a successful splashdown and recovery as Artemis shifts from testing to ongoing lunar exploration.

via NASA (.gov)|
#artemis-ii#astronauts#nasa