Back to Article List From the August 2008 issue How many supernovae explode each second in the universe? Allen Dailey, Sedona, Arizona By Astronomy Staff | Published: August 25, 2008 Putting these numbers together, about 40 supernovae are exploding somewhere in the universe every second.
Human Spaceflight, Science Ask Astro: How fast could a ship reach light-speed without crushing its human occupants?
