Sunday, April 29, 2012

star children

salutations everyone, how's life been treating you? i've been busier than ever, procrastinating  working on homework assignments and projects. i'm not sure how i'm going to survive high school at this rate x_x & so in science, we just started our unit on astronomy, or the science of "celestial objects, space, and the physical universe as a whole." (ahaha thank you!) so from what i can remember on friday: ~*~ASTRONOMY 101 WITH JESSICA in 3,2,1..

the first thing you have to know is so how did this huge, ginormous, gargantuan universe start out? answer: a hot dense space.
have you guys ever heard of the show, "the big bang theory" ? if you're an obsessed fan like me, you'd know the lyrics to their oh-so catchy theme song by the barenaked ladies (their band name makes me giggle on the inside teehee c:)

emphasis on the first two verses:

our whole universe was in a hot dense state,

then nearly fourteen billion years ago expansion started. wait!

the Earth began to cool,

the autotrophs began to drool,

neanderthals developed tools,

we built a wall (we built the pyramids),

math, science, history, unraveling the mysteries,
that all started with the big bang!

since the dawn of man is really not that long,
as every galaxy was formed in less time
than it takes to sing this song.
a fraction of a second and the elements were made.

the bipeds stood up straight,
the dinosaurs all met their fate,
they tried to leap but they were late
and they all died (they froze their asses off) 

basically, the universe is this that is light years and light years wide!a light year is the distance travelled at the speed of light (really really fast!) in a single year. the nearest star, other than the sun, to the earth, is four light years away, which is 23,513,999,300,000 miles or 37,842,113,700,000 kilometers (courtesy of google's distance converter! )

the solar system, the one we live in, is just a tiny part of 200-400 billion stars in our galaxy, the milky way. and then the nearest galaxy to the milky way is canis major dwarf, which, although is the closest one to us, is still a staggering .025 light years, 14,696,249,500 miles, or 23,651,321,000 kilometers away. the universe is then made up of an estimated 125 billion of these already h u g e galaxies. it's humbling to think how humans consider the earth to be big, when in comparison to the rest of the ever-expanding universe, we're just as significant as a drop of water is in the ocean. really puts things into perspective, doesn't it?

one physicist once said, "forget jesus. stars died so that you could be here today."

when a giant star dies, it explodes into a supernova, and forms heavier elements from the intense heat and pressure. (elements are the chemical basic building blocks that make up e v e r y t h i n g in the world) these elements sent flying into space by the supernova combine to form planets, including earth, and the living things on these planets, including human beings.

that means we're all made from stardust!~*~ :D 
sounds really magical and special just saying the words out loud cc:

semi relevant picture, from here

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♥●• İzdihër •●♥ said...

What a lovely post.

Coffee Cream and the Caffeine said...

Oh I do love big bang theory too, BAZINGA !