Researchers at the University of Limerick are pioneering a groundbreaking approach to address male infertility by engineering human sperm from lab-grown testicular tissue. This innovative research aims to provide hope for men facing untreatable infertility, offering an alternative to surgical sperm retrieval and donor sperm.
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Rice University scientists discovered bacteria thriving without oxygen by releasing electricity. These microorganisms use extracellular respiration, transferring electrons to external surfaces via naphthoquinones. This groundbreaking finding, confirmed through computer models and lab experiments, holds immense potential for clean energy, bioelectronic sensors, and sustainable technologies, reshaping our understanding of life in extreme environments.
A NASA study reveals that increased solar activity, particularly during solar maximum, accelerates satellite re-entry due to heightened atmospheric drag. This phenomenon, impacting constellations like Starlink, poses operational challenges and environmental concerns as more satellites burn up, releasing materials into the atmosphere. The situation necessitates improved space traffic management and consideration of space weather in planning.
A groundbreaking study reveals that a combination of rapamycin and trametinib extends the lifespan of mice by up to 30%, while also improving their health in old age. The drug cocktail reduced inflammation, delayed tumor growth, and enhanced physical function. This discovery offers hope for developing anti-ageing treatments for humans, potentially slowing or reversing ageing-related decline.
SpaceX's Starship rocket exploded during a test. The issue was a fuel reaction in an engine. The company made fixes, including better insulation. The Federal Aviation Administration approved the changes. A new test flight is set for May 27. This flight will reuse a Super Heavy booster. SpaceX aims to use Starship for Moon and Mars missions.
Astronaut Nichole Ayers, aboard the International Space Station, captured a stunning display of the Northern Lights over North America. While photographing severe storms, Ayers unexpectedly witnessed the vibrant green and purple aurora, triggered by heightened geomagnetic activity. The NOAA reported a Kp index of 6, enhancing visibility from space and Earth.
Donald Trump has withdrawn Jared Isaacman's nomination for Nasa administrator just before the senate confirmation vote. Isaacman, the CEO of Shift4 and a SpaceX mission participant, was nominated in December. He distanced himself from Elon Musk's views on lunar landings during his confirmation hearing, pledging to prioritize them if confirmed.
Sunita Williams and Butch Wilmore have safely returned to Earth after spending over nine months aboard the International Space Station, their mission extended due to technical problems with Boeing’s Starliner capsule. Both astronauts are currently undergoing intensive rehabilitation to readjust to Earth’s gravity and rebuild muscle strength. They are also contributing to NASA and Boeing’s efforts to improve future space missions.
In Jerusalem's Walls National Park, a 2,300-year-old gold ring with a red gemstone was unearthed, offering insights into the Early Hellenistic period. Discovered in a large structure's foundation, it likely belonged to a wealthy resident. Archaeologists believe it was intentionally buried, possibly for an engagement or coming-of-age ritual.