Theories explain evidence. There is considerable evidence our universe is expanding. The primary evidence is the red shift of the light from distant galaxies. The further a galaxy is from our local group, the more the light is shifted towards the infrared end of the spectrum.
The theory of General Relativity also predicts our universe should be expanding.
The Big Bang theory. However, I am not entirely sure whether it really explains why. Perhaps it just states that the Universe is expanding.
Galaxies that have the greatest red Doppler shifts are most distant
This is usually referred to as the 'Big Bang Theory'.
There is no accepted theory which states that the universe expanded from a ball of matter. The Big Bang theory states that the universe expanded from a singularity in space time.
Geocentrism. The word was probably "Ptolemaic" science, as in Claudius Ptolemy.
It caused such an alarm because the teaching of the geocentric theory (theory that the Earth is in the center of the universe rather than the Sun) was in the Bible, and therefore God's word, and if people thought the heliocentric (theory that the Sun is in the center of the universe rather than the Earth) they could either a) go against God's word and be punished or b) turn away from the church for being incorrect about this, ultimately leaving the Church with no money and no people. I believe Nicolaus Copernicus proposed this theory first.
For the same reason that any theory is disputed. Some people do not agree that the evidence put forth by theorists supports the generally accepted conclusion. The Big Bang theory speculates that our universe came into being as a result of a sudden and rapid expansion of material out of a tiny and unimaginably dense core of energy. Some people conclude that the evidence/information is itself flawed, and/or they represent serious mis-interpretations of observed phenomena. Others might come to different conclusions based on the current evidence, and still others may draw more assurance from faith-based or non-scientific approaches to knowledge.
Please and Thank you are the best words in the whole universe.
The Vatican did not believe in heliocentric theory for a long time.
There is no evidence that our GALAXY is expanding. Are you confusing the word galaxy with the word universe - if so they are NOT the same thing.
a theory that says that the universe began with a super-powerful explosion The word "explosion" carries a sense of something of large density expanding from a center point into a region of low density. This is NOT what happened during the Big Bang, despite many popular presentations that imply such an event. The Big Bang was NOT matter expanding from a center point into empty space, it was the expansion of space itself. There was nothing that this space was expanding INTO, it was just expanding.
Scientists think there may be another universe or universes beyond ours.The universe is vast and ever expanding. Some people firmly believe God created the universe and everything in it.
Cosmology is defined as the science of the origin and development of the universe. an account or theory of the origin of the universe.
Current scientific meaning of the word universe, is that it includes everything. So there is only one universe - The Universe However the new idea of String Theory is starting to suggest that there may be more than one universe, and so the meaning of the work universe may change in the future. The scientist Brian Greene is one of the leading physicist working on this theory. Science-teacher
The Big Bang Theory is widely considered by scientists and theologians as the way in which the universe started. Even the Pope accepts it.
Both accept that there was a time (if that word has meaning in this contest) when our Universe did not exist. The Steady State Theory (now almost completely rejected) held that our Universe is infinite in time and age. Both accept that our Universe came from SOMETHING. The former (basically) accepts that the something did not have intelligence, purpose, or morality; the latter accepts that the something did have those attributes.
Geocentrism. The word was probably "Ptolemaic" science, as in Claudius Ptolemy.
It caused such an alarm because the teaching of the geocentric theory (theory that the Earth is in the center of the universe rather than the Sun) was in the Bible, and therefore God's word, and if people thought the heliocentric (theory that the Sun is in the center of the universe rather than the Earth) they could either a) go against God's word and be punished or b) turn away from the church for being incorrect about this, ultimately leaving the Church with no money and no people. I believe Nicolaus Copernicus proposed this theory first.
Contracting
There are several different guesses (I hesitate to dignify these with the word "theory", which implies that there is at least some observational data to back them up) as to the eventual fate of the universe. These guesses change on a year-by-year basis. The idea that the "universe" may have an end is a relatively new one; the entire "big bang theory" of the origin of the universe is only 55 or so years old. Before that, the predominant idea was that the universe had existed forever, and would continue to exist forever.
The word would be expanding.