The exact number of supernovae that occur daily in the observable universe is challenging to determine with absolute precision. Supernovae are relatively rare events, and their occurrence rate varies depending on various factors such as the type of galaxy and its star formation rate.
On average, estimates suggest that there are roughly one to three supernovae per century in a typical galaxy like the Milky Way. However, the observable universe contains billions of galaxies, each with its own population of stars. Considering the vast number of galaxies, it is reasonable to assume that multiple supernovae occur on any given day.
To put it in perspective, a rough estimate based on current scientific knowledge suggests that there may be around 1 to 10 supernovae per second in the observable universe. This estimate takes into account the number of galaxies, their distribution, and the rate of supernova occurrence in different types of galaxies.
It's important to note that these numbers are approximate and subject to ongoing research and refinement. New observations and studies of supernovae help refine our understanding of their occurrence rates and shed light on the processes involved in stellar evolution and explosion.