Society for Science & the Public, which publishes Science News, uses cookies to personalize your experience and improve our services. For more information on how we use cookies on our websites, visit our Cookie Policy.
Context Physics

Fact and fiction about negative mass

By Tom Siegfried

This article is only available to Science News subscribers.

Subscribers, enter your e-mail address to access our archives.

Not a subscriber?

Science News is a nonprofit.

Support us by subscribing now.

More Stories from Science News on Physics

  1. blue whirl flame
    Physics

    Four types of flames join forces to make this eerie ‘blue whirl’

    By Emily Conover
  2. ice cube
    Physics

    A new experiment hints at how hot water can freeze faster than cold

    By Emily Conover
  3. atomic bomb explosion at Hiroshima
    Physics

    How understanding nature made the atomic bomb inevitable

    By Tom Siegfried
  4. illustration of sperm
    Health & Medicine

    Human sperm don’t swim the way that anyone had thought

    By Jack J. Lee
  5. Large solar flare
    Physics

    The physics of solar flares could help scientists predict imminent outbursts

    By Emily Conover
  6. Wormhole illustration
    Physics

    A black hole circling a wormhole would emit weird gravitational waves

    By Emily Conover
  7. Rotational Motions in Seismology
    Physics

    A giant underground motion sensor in Germany tracks Earth’s wobbles

    By Maria Temming
  8. Physics

    The universe might have a fundamental clock that ticks very, very fast

    By Emily Conover

From the Nature Index

Paid Content