From the August 2008 issue

How many supernovae explode each second in the universe?

Allen Dailey, Sedona, Arizona
By | Published: August 25, 2008 | Last updated on May 18, 2023

Gemini Sparkle

Key Takeaways:

  • The provided text states a rate of approximately 40 supernovae occurring per second throughout the universe.
  • The source quantifies the frequency of supernova events as a global phenomenon.
  • The numerical value presented (40 supernovae/second) is offered as an aggregate across the observable universe.
  • No further contextual information regarding the types of supernovae or their distribution is given.
Putting these numbers together, about 40 supernovae are exploding somewhere in the universe every second.