Some people have asked how we can know that astronomers’ statements about the evolution and demise of stars are factual. This question is usually asked by those in religious denominations that demand a young Earth, which means a young cosmos. Even though the time factors are much longer than human existence, we can have confidence in astronomical observations.
Although humanity has not been around long enough to observe the complete life of a star, we have seen intermediate steps in star evolution. Astronomers plot the luminosity (brightness) of stars against their surface temperature (or color/spectral type) with graphs called the Hertzsprung-Russell (H-R) diagram. It’s a powerful tool for classifying stars, studying their evolution, and understanding their properties. An example is the Crab Nebula.
In 1054, astronomers saw a star explode. The debris pattern of the explosion resembles a crab, so astronomers call it the Crab Nebula. Almost a millennium later, measurements show that the nebula is roughly 10 light years in diameter and is expanding at 1,500 kilometers per second. Observations of the Crab Nebula by the Hubble telescope in 2005 and the Webb telescope in 2023 show steps in the life of a star. Observations of other stars provide more information about a star’s lifetime, giving us confidence in astronomical observations.
Even though I didn’t see the launch, if I see a rocket climbing higher in the sky with every passing second, I know it was launched. I can even compute the launch time. When a car comes to a stop, leaving tire tracks, I know the car was going fast when someone applied the brakes. Every day, we understand evidence of a process without seeing it from start to finish. Astronomers come to understand the life history of stars in the same way.
As we have pointed out before, the Bible does not tell us the age of the cosmos or Earth. We can have confidence in astronomical observations. Young-earth theology is not only in opposition to the evidence but is also inconsistent with the biblical account.
— John N. Clayton © 2025
References: apod.nasa.gov for May 8, 2025, and Wikipedia.
Discover more from DOES GOD EXIST? TODAY
Subscribe to get the latest posts sent to your email.