The 33rd SpaceX commercial resupply services mission for NASA, scheduled to lift off from the agency's Kennedy Space Center in Florida in late August, is heading to the International Space Station with an important investigation ...
Space Exploration
Aug 19, 2025
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Beneath a cloak of darkness, illuminated only by glow sticks and red-filtered flashlights, researchers waited underwater off Key Largo hoping to witness one of the rarest events of sex in the sea.
Plants & Animals
Aug 18, 2025
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15
More than one-sixth of adults around the world experience infertility in their lifetime. There is a high unmet need not only for increased access to affordable, high-quality fertility care for those in need but, importantly, ...
Biotechnology
Aug 17, 2025
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26
Features of spaceflight such as gravitational changes and circadian rhythm disruption—not to mention radiation—take a toll on the body, including muscle wasting and decreased bone density. These may even affect the ability ...
Space Exploration
Aug 15, 2025
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31
Research from an international team finds that the human gut is a site of rapid change, with recent and important deviations from other mammals, including our closest living relative, the chimpanzee.
Evolution
Aug 6, 2025
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179
A team of researchers has recently developed a nondestructive imaging and machine learning system that accurately predicts the efficiency of stem cell differentiation into muscle stem cells. The team was led by Associate ...
Cell & Microbiology
Jul 24, 2025
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Researchers from Japan and France have successfully reconstituted the development of mouse egg cells, known as oocytes, from embryonic stem cells entirely in vitro, without the need for ovarian support cells. This new method ...
Cell & Microbiology
Jul 22, 2025
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A host of scientific investigations await the crew of NASA's SpaceX Crew-11 mission during their long-duration expedition aboard the International Space Station. NASA astronauts Zena Cardman and Mike Fincke, and JAXA (Japan ...
Space Exploration
Jul 16, 2025
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Scientists have created a more efficient and controlled way to produce lab-grown inner ear hair cells than current methods allow, offering a new tool for hearing loss research.
Cell & Microbiology
Jul 15, 2025
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8
According to the U.S. Department of Agriculture, 30% to 40% of the nation's food supply ends up being wasted. That adds up to billions of pounds every year rotting in landfills and emitting greenhouse gases like methane and ...
Biotechnology
Jul 15, 2025
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51
Stem cells are cells found in most, if not all, multi-cellular organisms. They are characterized by the ability to renew themselves through mitotic cell division and differentiating into a diverse range of specialized cell types. Research in the stem cell field grew out of findings by Canadian scientists Ernest A. McCulloch and James E. Till in the 1960s. The two broad types of mammalian stem cells are: embryonic stem cells that are isolated from the inner cell mass of blastocysts, and adult stem cells that are found in adult tissues. In a developing embryo, stem cells can differentiate into all of the specialized embryonic tissues. In adult organisms, stem cells and progenitor cells act as a repair system for the body, replenishing specialized cells, but also maintain the normal turnover of regenerative organs, such as blood, skin or intestinal tissues.
Stem cells can now be grown and transformed into specialized cells with characteristics consistent with cells of various tissues such as muscles or nerves through cell culture. Highly plastic adult stem cells from a variety of sources, including umbilical cord blood and bone marrow, are routinely used in medical therapies. Embryonic cell lines and autologous embryonic stem cells generated through therapeutic cloning have also been proposed as promising candidates for future therapies.
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