The "Big Bang" and Expanding Universe:
It is now quite well established (as discovered by Edwin Hubble in 1929) that the universe is expanding sort of like a raising lump of dough, whereby every galaxy (like raisins in the dough) is getting further apart from the center and from all the other galaxies ...except this is happening at a speed of thousands of miles per hour. --In fact, the rate of expansion is increasing, and the best understanding today has the expansion going on forever (ref.: the "flat universe" model).
Now, if we "reverse the film" on the expanding universe, and go way back, we would end up with all the matter in the universe located in a small area, which would be the beginning point. Such a "beginning" which expands out to today's universe is compatible with what is presented in the Bible. The Bible starts out by saying, "In the beginning God created the heavens and the earth" (Genesis 1:1).
-- So, the best science confirms a "beginning" to the universe.
It should be noted that in Genesis 1:1, the Hebrew word for "created" ("bara") basically means a "creation from nothing," as something is brought into existence. A start from nothing, is a very good description of what cosmologists (such as Stephen Hawking) call a "singularity," which is the starting-point of the Big Bang.
---A "singularity" is: all the potential mass (matter), energy, and dimensions (including time) of the cosmos, reduced down to an infinitely small point of ZERO volume. -- Note, that the dimesions also started at the point of ZERO length.
---This same concept is brought out again in Hebrews 11:3 which declares that "the universe was formed at God's command, so that what is seen was not made out of what was visible." The original starting-point for the universe was invisible, and had zero volume --just as the Bible teaches... as no other ancient writing does.
Furthermore: Cosmologists and physicists teach that matter, 3-dimensional space, and even time itself virtually did not exist before the Big Bang; (when God created them).
-- Here it is fascinating to NOTE: 1Corinthians 2:7, 2Timothy 1:9, and Titus 1:2 state that time itself (with all its eons and ages) had a "beginning." ---NO other ancient literature (particularly before the Bible) states that time had a beginning!
Then, having started from this "beginning" point, the Bible even says about God: "He alone stretches out the heavens and treads on the waves of the sea" (Job 9:8); and "He stretches out the heavens like a tent" (Psalm 104:2); and "He stretches out the heavens like a canopy, and spreads them out like a tent to live in" (Isa. 40:22); and "the Lord your Maker, who stretched out the heavens" (Isa. 51:13); ...there are about nine such biblical references. --Notice that God stretched the heavens out in the past, and some of those verses declare that He still "stretches" the universe out today!
This "beginning" from nothing, and the "spreading" or "stretching out" of the heavens (an excellent portrayal of the expanding universe due to the Big Bang since the instant God created the universe) are words of biblical prophets that were written from about 1500 BC. ---which is about 3000 years before Edwin Hubble discovered that the universe is expanding!