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2006-10-31 14:22:19 · 9 answers · asked by sandyphueng 1 in Science & Mathematics Astronomy & Space

9 answers

In the 1920s in California, astronomer Edwin Hubble observed distant galaxies using an extremely powerful telescope. He made two mind-boggling discoveries.

First, Hubble figured out that the Milky Way isn’t the only galaxy. He realized that faint, cloud-like objects in the night sky are actually other galaxies far, far away. The Milky Way is just one of billions of galaxies.

Second, Hubble discovered that the galaxies are constantly moving away from each other. In other words, the universe is expanding. The biggest thing that we know about is getting bigger all the time.

A few years later, Belgian astronomer Georges Lemaître used Hubble‘s amazing discoveries to suggest an answer to a big astronomy question: “How did the universe begin?”

This breakthrough idea later became known as The Big Bang.

THE BIG BANG
1. About 13 billion years ago the universe began as a tiny tiny tiny dense fireball that exploded.
2. In the early years, everything was made of gas. This gas, almost totally hydrogen and helium, expanded and cooled.
3. Over millions of years, gravity caused this gas and cosmic dust to form galaxies, stars, planets and more.
4. The matter that spread out from the Big Bang formed EVERYTHING in the universe, even you.
5. Most astronomers use this theory to explain how the universe began, but what caused the explosion in the first place is still a mystery.

Stephen Hawking in 'A Brief History of Time' describes how time and energy came into existence with the creation of the Big Bang. He say, though, that the laws of science break down at the singularity (the tiny tiny tiny dense fireball that exploded into the Big Bang) and prevent us from looking further back in time.

As far as the Big Bang theory is concerned it is meaningless to try to look back beyond the Big Bang because nothing existed. Perhaps so, but it's very unsatisfactory to have a theory of the creation and evolution of the universe that does not explain where the universe, the Big Bang, actually came from. It must have come from something, don't you think? Or, maybe not...


Astronomy Picture of the Day : http://antwrp.gsfc.nasa.gov/apod/
(Appropriately, it's The Spooky Nebula for October 31st, Halloween here in the U.S.)

For more info, see the refs below.

2006-10-31 14:59:36 · answer #1 · answered by Sebille 3 · 2 0

To answer your question, plain and simply, the Big Bang. It is the best theory we have so far about the creation of the universe, and there are considerable amounts of evidence for it.

The "god did it" answer only tells an intelligent person that you have absolutely no clue how things work, and that you don't have the brain capacity to actually keep an open mind and look for answers.

2006-10-31 14:33:20 · answer #2 · answered by Anonymous · 1 0

Our univeese started 13.7 billions years ago from a singularity. Why that singularity started to expand no one knows yet but scientists have a good working understanding of what happened from the instant it started to expand until now. One speculation is that a vast intelligence from a prior dying universe created our universe and moved in. We'll know the answers in our lifetime..

2006-10-31 14:36:59 · answer #3 · answered by Michael da Man 6 · 0 0

It has always existed. Of course, God and his pals made the Earth. We rise, we fall, we rise again. Every time we rise it's like a sweet, sweet symphony. Then we all gather 'round and wrestle wild boars and have a grand ol' time. Remember when the music was a glow on the horizon of each newborn day? And as we sang, the words would chase the dark away? And life was good for we, we knew we could?

2006-10-31 14:27:07 · answer #4 · answered by Atlas 6 · 0 0

the 2 most common theories are the big-bang and creation. recently the big-bang was pretty much proven when two scientist won the noble prize for discovering space ripples that could be traced back to the exact point where the big bang occured. but as for where all the matter and energy in the big-bang came from...no one truly knows.

2006-10-31 14:57:38 · answer #5 · answered by adam h 2 · 0 0

Seven Seas, the universe maker.

2006-10-31 14:42:32 · answer #6 · answered by szydkids 5 · 0 0

One theory is the Big Bang theory, which is where the universe was created from a gigantic explosion of sorts.

2006-10-31 14:26:04 · answer #7 · answered by Shifter 3 · 0 0

Look up 'big bang' and 'cosmological evolution' and 'furniture factories'. Ignore comments about supreme beings if you have any intellectual curiousity whatsoever. Really, people, do you want to discourage future scientists? Because 'god did it' is not encouraging further research into anything.

2006-10-31 14:25:56 · answer #8 · answered by eri 7 · 2 0

Eri says that intelligent design (God made it) is discouraging to future scientists. Why? Just because you believe God created the Heavens and the Earth, doesn't mean you wouldn't want to discover how, or why!

Maybe it's my lack of vanity, but I just have to believe that something larger than myself created all of this. Something more powerful and more intelligent than we could possibly understand, but that doesn't mean we shouldn't try!

So if Eri wants to bobble around in the dark, looking for answers from science based solely in secular beliefs, that's OK with me. As for me, I believe God made it.

2006-10-31 14:44:58 · answer #9 · answered by Danno 2 · 0 2

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