Search Results for: bacteria

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5,437 results
  1. An illustration of Streptococcus pneumoniae bacteria, represented as orange circles, infecting brain cells.
    Neuroscience

    How meningitis-causing bacteria invade the brain

    Microbes behind bacterial meningitis hijack pain-sensing nerve cells in the brain’s outer layers, disabling a key immune response, a mouse study shows.

    By Jackie Rocheleau
  2. A microscopic image of the bacterial species Streptococcus salivarius.
    Health & Medicine

    Too much of this bacteria in the nose may worsen allergy symptoms

    Hay fever sufferers have an overabundance of Streptococcus salivarius. The mucus-loving bacteria boost inflammation, causing an endlessly runny nose.

    By Aimee Cunningham
  3. Round Emiliania huxleyi cells, some clustered around smaller rod-shaped bacteria, consuming them
    Microbes

    Some ‘friendly’ bacteria backstab their algal pals. Now we know why

    The friendly relationship between Emiliana huxleyi and Roseobacter turns deadly when the bacteria get a whiff of the algae’s aging-related chemicals.

    By Elise Cutts
  4. A close up of orange bacteria on a yellow background
    Microbes

    Ancient bacteria could persist beneath Mars’ surface

    Radiation-tolerant microbes might be able to survive beneath Mars’ surface for hundreds of millions of years, a new study suggests.

    By Sid Perkins
  5. A collection of different cheeses stacked in a pile with a black background.
    Microbes

    Meet some of the microbes that give cheeses flavor

    Knowing which genus of bacteria is responsible for which flavor could open the door to new types of cheese.

    By Allie Wilkinson
  6. A photo of a researcher looking at a clear petri dish with blue dots on it.
    Health & Medicine

    Here’s how mysterious last-resort antibiotics kill bacteria

    Scientists are finally getting a grip on how a class of last-resort antibiotics works — the drugs kill bacteria by crystallizing their membranes.

    By Elise Cutts

  7. Readers discuss big bacteria, gravitational radar and more

    By Science News Staff
  8. Human skeleton from waist down showing earliest surgery
    Life

    Here are 5 record-breaking science discoveries from 2022

    The earliest surgery, fastest supercomputer and biggest single-celled bacteria were some of this year’s top science superlatives.

    By Erin Wayman
  9. Bacillus subtilis spores
    Microbes

    How dormant bacteria spores sense when it’s time to come back to life

    Bacterial cells shut down and become spores to survive harsh environments. An internal countdown signals when it’s safe for bacteria to revive.

    By Darren Incorvaia
  10. dark field microscope images of long, thin cable bacteria filaments
    Environment

    Electrical bacteria may help clean oil spills and curb methane emissions

    Cable bacteria are living electrical wires that may become a tool to reduce methane emissions and clean oil spills.

    By Nikk Ogasa
  11. Microbes

    This giant bacterium is the largest one found yet

    On average, Thiomargarita magnifica measures 1 centimeter long and maxes out at 2 centimeters. It is 50 times larger than other giant bacteria.

    By Erin Garcia de Jesús
  12. Oil from the Deepwater Horizon disaster floats atop the Gulf of Mexico
    Earth

    50 years ago, scientists found a new way to clean up oil spills

    In the 1970s, researchers added chemicals to the list of oil spill cleanup methods. Soon, they may add microbes.

    By Meghan Rosen