Based on current estimates, it is highly likely that there are more than a trillion stars in the universe. However, it is important to note that the exact number of stars in the universe is difficult to determine with absolute certainty. The observable universe alone contains billions of galaxies, and each galaxy can contain anywhere from millions to hundreds of billions of stars.
Estimating the total number of stars in the universe involves complex calculations and extrapolation based on observations and theoretical models. Scientists have used various methods, such as counting stars in small regions of space and then extrapolating those numbers to the entire universe, to arrive at estimates.
However, it is worth mentioning that the universe is vast, and our understanding of its size and contents is continually evolving as technology advances and new discoveries are made. Therefore, the estimated number of stars may change as our knowledge grows and more accurate observations become available.