All Stories

  1. Psychology

    A growing share of teens feels lonely at school

    Data from kids in 37 nations links this to use of cell phones and the internet.

    By Kathryn Hulick
  2. Psychology

    Psychology shines light on the harm racism can do

    All forms of racism are harmful. Research sheds new light on the biases behind racism and the many ways it can affect our mental health.

    By Kathiann Kowalski
  3. Health & Medicine

    What to know as Pfizer’s COVID-19 vaccine rolls out for kids under 12

    After a trial in which no unusual side effects were reported, and approval by the FDA and CDC, kids ages 5 to 11 will be able to receive the COVID-19 vaccine.

    By Aimee Cunningham and Erin Garcia de Jesús
  4. Chemistry

    Chemistry solves a French royal mystery

    Ink analysis reveals the hidden words of Marie Antoinette's letters and who tried to hide them.

    By Carolyn Gramling
  5. Tech

    Scientists find a ‘greener’ way to make jeans blue

    When coated onto jeans, a plant-based polymer reduces water and cuts the amount of toxic chemicals needed.

    By Shi En Kim
  6. Environment

    Everyday plastics can pollute, leaching thousands of chemicals

    Plastic bags and containers leach potentially toxic chemicals into both food and water, but researchers yet don’t know how they might affect health.

    By Alison Pearce Stevens
  7. Tech

    Did Facebook put Instagram profits ahead of teen safety?

    Former employee said Facebook (now Meta) ignored its own research on Instagram risks to teens’ mental health. We look at the issues and what you can do.

    By Kathiann Kowalski
  8. Plants

    Scientists Say: Phloem

    Phloem is tissue that delivers food, made in leaves during photosynthesis, to the rest of a plant.

    By Maria Temming
  9. Planets

    NASA’s Perseverance rover grabbed its first Martian rocks

    Two finger-sized pieces of stone drilled from a basalt rock are the first bits of Mars ready to be brought to Earth.

    By Lisa Grossman
  10. Brain

    Ask the experts: How to create a top-notch science fair project

    Five finalists in the Broadcom MASTERS middle-school competition reveal how they created nationally competitive projects.

    By JoAnna Wendel
  11. Animals

    Bloodthirsty vampire bats prefer drinking with friends

    Vampire bats were known to bond with others in their roost. Now, research suggests bonded bats often drink blood from animals together.

    By Jonathan Lambert
  12. Planets

    Pluto is no longer a planet — or is it?

    In the 15 years since Pluto lost its status as a planet, some scientists continue to use whatever definition works best for them.

    By Lisa Grossman
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