A new study published in the Astrophysical Journal has created a controversy of sorts among cosmologists and astrophysicists. New observations suggest that the rate at which the universe is expanding may be different depending on how far back we look at distant stars and galaxies. Two contradictory sets of data have emerged, one coming from measurements of the Cosmic Background Radiation in the universe and one from measurements of pulsating stars in nearby galaxies.
While the rate of cosmic movement is now being debated within the scientific community, one fact is clear, and this simple truth has profound implications: The universe is expanding.
Scientists have known this for many years, and most consider it to be an important piece of evidence demonstrating that the universe had a beginning. To illustrate the strength of this evidence, imagine drawing a random assortment of dots on a balloon and slowly inflating it. As the balloon grows and expands in size, the dots will begin to separate from one another. Astronomers observe something similar when studying our universe. Stars and galaxies are moving away from one another, just like the dots on the balloon.
As astronomers and cosmologists imagine rewinding the cosmic clock, the most reasonable inference is that the expansion of the universe (like the expansion of the balloon) had a beginning.
In addition to the expansion of the universe, scientists point to the Second Law of Thermodynamics, the abundance of Helium in the universe, and the existence of Cosmic Background Radiation to support their conclusion that the universe had a beginning (I’ve written much more about this scientific evidence in God’s Crime Scene). Based on this evidence, most cosmologists and astrophysicists embrace what has become known as the Standard Cosmological Model for the origin of the universe, commonly referred to as “Big Bang” Cosmology.
According to this model of cosmic origins, everything we observe in the universe – all space, time and matter – the very attributes we ascribe to the natural realm – came into existence when our universe first began.
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SOURCE: Christian Post, J. Warner Wallace