Uncategorized

  1. Physics

    Sunlight is all that’s needed to keep these tiny aircraft aloft

    Sun-powered fliers could use photophoretic forces to hover in the mesosphere, gathering data from a region off limits to planes and balloons.

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  2. Animals

    Warm autumns could be a driver in monarch butterflies’ decline

    In the lab, higher temperatures during fall migration led monarchs to break their reproductive pause, increasing their risk of death.

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  3. Humans

    Stopping menopausal hormones may require more bone monitoring

    Women face a small rise in fracture risk within 10 years of stopping therapy, suggesting the need for additional monitoring.

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  4. Health & Medicine

    The sugar substitute sucralose makes immunotherapy less effective

    Found in Splenda, sucralose reduces immunotherapy efficacy via its effects on the gut microbiome, but arginine supplements might counter the outcome.