The Universe
4.6% of the universe is atoms, ~23% is dark matter, and 72% is dark energy.
Atoms make molecules, molecules make cells, cells make organisms, and when you break everything down to a beginning point - it all came from the Big Bang.
There are approximately 100B galaxies in the universe.
There is a Black hole at the centre of each Galaxy
Monster
Galaxy Cluster 'El Gordo' Packs Mass of 2 Quadrillion Suns
Each Galaxy is relatively spaced apart from each other around the same distance that atoms are spaced apart from each other.
There are 200B stars in our galaxy - The Milky Way
It takes light approximately 100,000 years to cross our galaxy (13-16B years to cross the universe)
Our Black Hole is in the Constellation Sagitarrius
The earth is made from the dust of our star (the sun), and the moon is made from the dust of the earth.
Our moon was formed from the dust of our Earth (collisions with asteroids, etc.). The dust that went into space coalesced into rocks, the rocks became boulders, the boulders became bigger, etc. and this process (called Acretion) is how all solid planets have formed (i.e. Jupiter is a gas planet - no solid surface)
This is what is happening in Saturn - the rings. Technically they are more than a billion moons.
The Keiper belt
If the sun was the size of a basketball - the earth would be about 87 ft. away (93,000,000 miles), pluto would be about 8 blocks away, and the keipter belt will be from 8-12 blocks away (5-8B miles from the sun), virtually doubling what we thought was the area of our solar system. (Pi)r2
Outside of the Keiper belt is the Oort cloud. Relatively - it would be 34 miles away from the basketball sun. The edge of the oort system would be 1700 miles away. We know it's there because comets from outside of the oort cloud come into our system, and the (Hale Bopp). And these comets (made of rocks and ice) are the most likely explanation of where our oceans come from (like water ballons smashing into the earth).
Stars start out as big gas clouds. Gravity pulls those clouds together and they get so concentrated that fusion starts in the core of what has now become a star. Stars are then basically giant balls of energy that are powered by gravity.
The bulk of the
gas in a star is
hydrogen (1),
and in the 'melting pot'
(furnace) the hydrogen
atoms fuse (fusion)
into helium (2)
atoms (both
are gases).
Eventually the gravitational pressure will be so intense that the neutrons themselves will be crushed and the eventual collapse will be the birth of a black hole. It is compressed so tightly it literally 'exits' the known universe.
If you let every person on earth set off a nuclear weapon once a second you still wouldn't have as much power as in the sun.
The internal temperature of the sun is over 1,000,000 degrees.
All Stars start out burning Hydrogen and then fuses them into Helium.
Gravity is pulling it towards the core - heat is pushing it back out.
Constellations are simply names we give to groups of stars for reference, but they are not in themselves - grouped in any particular fashion.
All currently popular scientific theories suggest (unprovingly), that there must be more than 1 universe - a multiverse.
