Tuesday, July 7, 2009

Through a Glass Really Darkly!

I recently saw a documentary about the universe with physicist Michio Kaku (his day job is string theory). It turns out that the universe is 13.7 billion years old. Cosmologists know this because the universe is cooling down. Through satellite technology they have mapped the microwaves of the universe and if they crank up the contrast they can see what it looked like when it was a baby. By mapping the cooling microwaves, they can calculate that 13.7 billion years ago time and space erupted in the big bang.

How do they know this? Well they know that the universe is expanding because Hubble looked through his telescope in the 1920s and discovered that galaxies are moving away from us and we are moving away from them. Well if everything is expanding, then it must have been much closer together at one time. That original density was more compact than an atom because an atom is mostly space. Imagine an atom where the electrons aren't orbiting a nucleus but are packed into it, and we have an idea of how dense we once were. Since I find this difficult to understand, I must still be pretty dense! Hee, hee, hee! Anyway, this density, called the singularity, suddenly expanded or banged, and space has been getting spacier ever since. Now that's definitely true, especially for blondes (Wow, my first blonde joke!).

Moving on, our solar system began when a star exploded in what they call a supernova. How do they know that? Evidently, a supernova is the only thing that's hot enough to cook the elements that make up our bodies. So our universe began with a big bang and our solar system began in a supernova.

Another interesting fact about our universe is that galaxies aren't behaving according to the laws of gravity. There is not enough known mass in the galaxies of our universe to hold them together in a gravitational field. It also turns out that the distant parts are orbiting at the same speeds as the nearer planets and stars. If Newton's laws are correct they should be orbiting slower and spinning out of the gravitational pull. Either we chuck gravity and falling apples or we come up with something else that's holding things together.

Ever since John Mayer's latest album, we don't want to question "Gravity," so there must be some mass that astronomers can't see. This mass has been nicknamed "dark matter." Evidently atoms make up only about 5% of the universe, so how much dark matter is there? According to calculations based on observations, they can only come up with a little over 20% dark matter. So 75% of the universe was still missing and that was a problem. But there's no problem that can't be solved by bringing in another problem.

Curiously, the universe isn't slowing down as expected but expanding faster and faster. Now if the gravity brakes aren't working, maybe its time to question gravity. But alas, John Mayer is too entrenched in popular culture, and we can't discredit Newton's falling apple (much less his work on figs), so there has to be an energy we can see that's causing the universe to accelerate. Enter dark energy and presto, there's the other 75% of universe!

The only remaining problem is that we cannot detect dark matter or energy, but we are trying. There's an underground lab in England trying to pick up the matter as it passes through the earth. Now that's a good use of someone's taxpayer dollars or science funding! And people think theology is an esoteric waste of time. There was a time, I think it was called the Enlightenment, when if you brought up theories about invisible things you got laughed out of universities, but now you can make a career out it! The Lord has a sense of humor, doesn't he?

Proverbs 25:2

It is the glory of God to conceal things,
but the glory of kings is to search things out.

Psalm 59:7-9

7There they are, bellowing with their mouths
with swords in their lips—
for "Who," they think, "will hear us?"

8But you, O LORD, laugh at them;
you hold all the nations in derision.

9O my Strength, I will watch for you,
for you, O God, are my fortress.

Hebrews 1:3

3He is the radiance of the glory of God and the exact imprint of his nature, and he upholds the universe by the word of his power.

Colossians 1:16-18

16For by him all things were created, in heaven and on earth, visible and invisible, whether thrones or dominions or rulers or authorities—all things were created through him and for him.17And he is before all things, and in him all things hold together. 18And he is the head of the body, the church. He is the beginning, the firstborn from the dead, that in everything he might be preeminent.

1 comment:

Virginia said...

I must be pretty dense as much of the scientific facts are difficult for me to understand. But I do know that God's word is alive, and as I read His scriptures they jump from the page and speak to my heart. Thank you for drawing light to the way God conceals things, and man must seek them out. Food for thought! Keep up the great posts.