Science: Hot Universe

Man's growing interest in space and the universe is producing an ever-increasing list of theories on one of the biggest of all scientific questions: Why is the universe expanding? Why do its galaxies fly apart like marbles in an explosion, while the galaxies themselves do not expand?

Last spring, British Mathematicians Raymond A. Lyttleton and Hermann Bondi attributed the expansion of the universe to the presence of thin hydrogen gas between the galaxies, suggesting that the hydrogen atoms may have slight positive charges and therefore push one another apart by electrostatic repulsion (TIME,...

Want the full story?

Subscribe Now

Subscribe
Subscribe

Get TIME the way you want it

  • One Week Digital Pass — $4.99
  • Monthly Pay-As-You-Go DIGITAL ACCESS$2.99
  • One Year ALL ACCESSJust $30!   Best Deal!
    Print Magazine + Digital Edition + Subscriber-only Content on TIME.com

Learn more about the benefits of being a TIME subscriber

If you are already a subscriber sign up — registration is free!