Meghan Rosen headhsot

Meghan Rosen

Senior Writer

Meghan Rosen is a senior writer who reports on the life sciences for Science News. She earned a Ph.D. in biochemistry and molecular biology with an emphasis in biotechnology from the University of California, Davis. Her dissertation work involved studying mutated proteins in liver and kidney cancer. She later graduated from the science communication program at UC Santa Cruz. Prior to joining Science News in 2022, she was a media relations manager at the Howard Hughes Medical Institute. Her work has appeared in Wired, Science, and The Washington Post, among other outlets. Once for McSweeney’s, she wrote about her kids’ habit of handing her trash, a story that still makes her (and them) laugh.

All Stories by Meghan Rosen

  1. Humans

    Napoleon’s retreating army may have been plagued by these microbes

    DNA from Napoleonic soldiers’ teeth uncovered two fever-causing bacteria that may have worsened the army’s fatal retreat from Russia.

  2. Humans

    Brain cancer can dissolve parts of the skull

    Glioblastoma doesn't just affect the brain. It also erodes bones in the skull and changes the composition of immune cells in skull marrow.

  3. Health & Medicine

    COVID-related smell loss may last years

    Using a scratch-and-sniff test, researchers discovered that smell loss after COVID-19 may linger for more than two years.

  4. Chemistry

    Chemistry that works like Hermione’s magic handbag wins a 2025 chemistry Nobel

    Richard Robson, Susumu Kitagawa and Omar Yaghi developed metal-organic frameworks, structures that can collect water from air, capture CO₂ and more.

  5. Health & Medicine

    New oral GLP-1 drugs could offer more options for weight loss

    GLP-1 injections use needles and require refrigeration. Pills that work in a similar way could be a cheaper, simpler solution.

  6. Health & Medicine

    Cancer uses mitochondria to reprogram neighboring cells

    Cancer cells transfer mitochondria through nanotubes to healthy neighboring cells, turning them into tumor-supporting accomplices, a new study shows.

  7. Animals

    This ‘ghost shark’ has teeth on its forehead

    Spotted ratfish, or “ghost sharks,” have forehead teeth that help them grasp onto mates. It’s the first time teeth have been found outside of a mouth.

  8. Humans

    Staying on the keto diet long term could carry health risks

    Months on a high-fat keto diet put mice at risk for cardiovascular disease and impaired insulin secretion.

  9. Health & Medicine

    Cancer patients froze reproductive tissue as kids. Now they’re coming back for it

    Saving reproductive tissue from kids treated for cancer before adolescence could give them a chance at having biological children later in life.

  10. Humans

    Want to avoid mosquito bites? Step away from the beer

    A Dutch music festival turned into a mosquito lab, revealing how beer, weed, sleep and sunscreen affect your bite appeal.

  11. Health & Medicine

    Drugs like Ozempic might lower cancer risk

    GLP-1 medications like Ozempic, Wegovy and Mounjaro might lower people’s risk of developing certain cancers, especially ones linked to obesity.

  12. Animals

    Here’s how fruit flies’ giant sperm squeeze into tight spaces

    Researchers found that fruit fly sperm push against one another and align in orderly bundles, preventing knots that could block reproduction.