Copernical Team
Closing in on the elusive neutrino
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The humble neutrino, an elusive subatomic particle that passes effortlessly through normal matter, plays an outsized role among the particles that comprise our universe. To fully explain how our universe came to be, we need to know its mass. But, like so many of us, it avoids being weighed.
Now, an international team of researchers from the United States and Germany leading an ambitious qu Camera hack lets Solar Orbiter peer deeper into Sun's atmosphere
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Scientists have used Solar Orbiter's EUI camera in a new mode of operation to record part of the Sun's atmosphere at extreme ultraviolet wavelengths that has been almost impossible to image until now. This new mode of operation was made possible with a last-minute 'hack' to the camera and will almost certainly influence new solar instruments for future missions.
Solar Orbiter's Extreme Ult On the road to spotting alien life
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In early August, scientists and engineers gathered in a small auditorium at Caltech to discuss how to build the first space telescope capable of detecting life on planets like Earth. The proposed mission concept, called the Habitable Worlds Observatory (HWO), would be the next powerful astrophysics observatory after NASA's James Webb Space Telescope (JWST). It would have the ability to study sta NASA's completes Oxygen-Generating Experiment MOXIE
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Riding with the Perseverance rover, the instrument has proved to be a viable technology for astronauts on Mars to produce oxygen for fuel and breathing. When the first astronauts land on Mars, they may have the descendants of a microwave-oven-size device to thank for the air they breathe and the rocket propellant that gets them home. That device, called MOXIE (Mars Oxygen In-Situ Resource Utiliz Psyche on track for liftoff next month
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Bound for a metal-rich asteroid of the same name, the Psyche mission is targeting Oct. 5 to launch from NASA's Kennedy Space Center in Florida.
The spacecraft's solar arrays are folded like an envelope into their stowed position. Xenon gas - fuel for the journey to the asteroid belt - is loaded. All four thrusters have passed their final tests. Engineers have confirmed the massive high-gai Week in images: 04-08 September 2023
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Week in images: 04-08 September 2023
Discover our week through the lens
Thumbs up for training
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Image:
ESA project astronaut Sławosz Uznański from Poland inside the Columbus mockup at EAC. An artificial star for testing the optical performance of startrackers
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Like mariners of old, spacecraft steer by the stars—using combinations of telescopes, cameras and computers called startrackers to recognize stellar constellations to calculate their own position in space.
The test bench seen here generates an artificial star-like light source to test the optical performance of startrackers.
Part of the Guidance and Navigation Control (GNC) Attitude and Orbit Control (AOCS), and Pointing Laboratory, based at ESA's ESTEC technical center in the Netherlands, this test bench combines a two-axis precise rotating table with a single star simulator—simulating the light coming from infinity from a star of a given brightness and color.
Produced in house by the lab team, the purpose of this facility is to characterize or calibrate a startracker in terms of distortion, chromatic aberration and other optical variables.
The GNC, AOCS and Pointing Lab works on manner of technologies related to a spacecraft's ability to derive its orientation and location in space. It is one of a suite of ESA technical labs addressing all aspects of spaceflight.
Provided by European Space Agency
A method for traction ability research of rover wheels on mixed planet terrain with movable stones
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The Chang'e-6/7/8 exploration mission has been announced officially by China recently, and the international lunar and Mars research station plans will be carried out within the 2030s. It can be predicted that China's future lunar and Mars surface exploration activities will last longer, have a larger exploration range, and have a more complex terrain to traverse and explore, which will pose severe challenges to the working performance of the planet rover and its adaptability to the planet surface environment.
One of the key problems will be to study the relationship between the mechanical properties of planet soil and the traction performance of the planet rover's wheels. The mixed terrains of terramechanics research are mainly composed of static stones and loose soil.
Whereas, the movement behavior of stones is often ignored while analyzing the influence of the wheel's traction performance caused by mixed terrain.
The Astronaut Center of China 90-d head-down bed rest: Overview, countermeasures, and effects
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When astronauts enter space, they are exposed to weightlessness. Physiological and psychological challenges are waiting ahead. They may have a puffy face and experience space motion sickness, cardiovascular deconditioning, muscle atrophy, and bone loss.
Moreover, long-term spaceflight has been shown to result in 83% of astronauts with post-flight orthostatic intolerance. For such problems, exercise countermeasures can be the primary approach to resolve these changes. Head-down bed rest (HDBR) simulates physiological effects in weightlessness and is widely used in countermeasure testing, and efficacy of exercise interventions has been widely studied in HDBR with different periods as well.
Usually, the long-term bed rest experiment is completed in stages, and a positive control of separated exercise countermeasures rarely tests at the same time in these experiments.
