Lost in space: Sperm struggles to navigate during weightless sex
Scientists have used a tiny plastic "obstacle course" to test how much sperm would struggle to navigate during sex in the weightlessness of space.
Mar 29, 2026
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Physical Phenomena: News and Research on Astronomical Phenomena
MeSH tree: G01.060
Houston, we have a problem: Study points to clotting glitch in space
A cut presumably draws blood anywhere in the universe, whether in an Earthly suburb or on some future interstellar voyage yet undreamed outside science fiction. In space, however, clotting's the challenge. A recent study ...
Feb 26, 2026
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3D chip platform enables animal-free testing in cancer research
Cancer research laboratory tests can now be done using micro-physiological systems mimicking human physiology, allowing greater predictive accuracy for human patient responses, thanks to an international scientific team led ...
Jan 27, 2026
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Astronauts can get motion sick while splashing back down to Earth. VR headsets could help them stay sharp
When learning about the effects of spaceflight on human health, you typically will hear about the dangers of radiation, bone density loss and changes in eyesight. While these long-term risks are important, a less frequently ...
Oct 21, 2025
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Floating babies, cosmic radiation and zero-gravity birth: What space pregnancy might actually involve
As plans for missions to Mars accelerate, so do questions about how the human body might cope. A return trip to the red planet would give more than enough time for someone to become pregnant and even give birth. But could ...
Jul 23, 2025
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Space-based experiment opens new avenues in Alzheimer's research
A collaborative team of researchers has succeeded in revealing the high-resolution structures of amyloid β (Aβ40) fibrils carrying the Tottori-type familial mutation (D7N) by leveraging the microgravity environment aboard ...
Jun 25, 2025
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Space conditions can cause gum inflammation and bone loss, say scientists
Living in zero gravity can lead to periodontitis, a common and serious condition where the gums become inflamed and the bone that supports teeth starts to break down, eventually leading to tooth loss, scientists reveal in ...
Jun 16, 2025
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Model accurately predicts the movement of elite athletes to catch the ball in parabolic flight
How does a tennis player like Carlos Alcaraz decide where to run to return Novak Djokovic's ball by just looking at the ball's initial position? These behaviors, so common in elite athletes, are difficult to explain with ...
Feb 24, 2025
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Heart cell survival in space sheds light on better treatment strategies on Earth
A team of researchers led by Emory's Chunhui Xu recently found that heart muscle cells can grow and survive in the microgravity environment of space. The team's findings, published in Biomaterials, show promise for developing ...
Jan 21, 2025
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Health research launches into orbit to discover how spaceflight affects blood
The International Space Station (ISS) is an incredible feat of engineering, designed to support human life in profoundly inhospitable conditions. But the tiny metal bubble in the big black void can only do so much. Life in ...
Nov 6, 2024
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