Physics

  1. Physics

    The exotic ‘atom’ positronium surprises scientists

    New measurements of a weird but simple atom, one without a nucleus, suggest it may have unexpected properties. Scientists find this troubling.

    By
  2. Animals

    Quacks and toots help young honeybee queens avoid deadly duels

    It’s not just ducks that quack. Honey bees do it too. They also toot. Researchers eavesdropped on hives to find out why.

    By
  3. Materials Science

    Will bacterial ‘wires’ one day power your phone?

    An accidental discovery helps scientists generate electricity out of thin —but humid — air with bacteria-made protein nanowires.

    By
  4. Physics

    Could ripples in spacetime point to wormholes?

    A new calculation reveals that strange gravitational waves detected by LIGO and Virgo could see if a black hole were falling into a hypothetical tunnel in spacetime.

    By
  5. Space

    Explainer: Stars and their families

    Most pinpoints that light the night sky are raging infernos we call stars. As adults, many will create new elements that they later cast off into the cosmos.

    By
  6. Space

    Milky Way’s tidal forces are shredding a nearby star cluster

    The nearest star cluster is being pulled apart, due largely to the tidal forces of our galaxy, the Milky Way. Bye bye, Hyades!

    By
  7. Chemistry

    Let’s learn about batteries

    Many things in our lives rely on batteries. Here’s how scientists are working to make new ones — and make existing batteries safer.

    By
  8. Physics

    Flying snakes wriggle their way through the air

    Flying snakes go tens of meters (yards) without wings. They do it by undulating back and forth and up and down, a new study shows.

    By
  9. Physics

    Scientists Say: Microgravity

    Gravity is a force that brings objects together. But when those objects get far away, the force feels small. It feels like microgravity.

    By
  10. Chemistry

    Scientists Say: Atom

    An atom is the smallest possible piece of a chemical element.

    By
  11. Space

    Spotted: Milky Way’s giant gas bubbles in visible light

    The bubbles have different colors, based on how the gas inside them moves. That could give clues to how the bubbles developed.

    By
  12. Brain

    Explainer: How our eyes make sense of light

    It takes a lot for images before the eyes to be 'seen.' It starts by special cells sensing the light, then signals relaying those data to the brain.

    By