What type of stars are the most common in the universe?

Red dwarfs are classified as low-mass stars and are the most common type of stars in the universe. They are characterized by their small size, low temperature, and extended lifespans, often lasting tens to hundreds of billions of years. The stability and longevity of red dwarfs allow them to thrive in various environments across the cosmos, leading to their prevalence in the galaxy.

In contrast, high-mass stars are relatively rare due to their short lifespans, which can last only a few million years before they exhaust their nuclear fuel and undergo transformation, such as supernovae. Medium mass stars, like our Sun, are more common than high-mass stars but still not as abundant as red dwarfs. Supernovae, while dramatic and significant astronomical events, are not types of stars; they result from the explosive death of massive stars and represent a fleeting moment in the life cycle of a star rather than a category of stars themselves. Thus, red dwarfs stand out as the most ubiquitous stellar type in the universe.