Big bang theory
The big bang theory states what?
That the universe started as a SINGLE POINT and expanded to be as large as it is right now.
What is a light year?
A light year is the distance that light can travel in 1 year which is 9 trillion km.
The color of a star is based on its?
TEMPERATURE
What is an elliptical galaxy?
A round or oval and usually contain very little orginazation
From observing far away galaxies moving away we know what?
From observing far away galaxies moving away we know that the universe is still expanding
What is an AU?
Is the avarage distance between the earth and the sun which is about 150 million km and they are used to measure distances in our solar system.
Colors of a star?
Blue, White, Yellow, Red
A giant rotating "pinwheel" with a tight concentration or "bulge" of stars at their centers.
The universe is...?
13.8 billion years old
What is a supernova?
An explosion, SIMPLE
90% of the stars in the universe are part of the???
main sequence
What is an irregular galaxy?
An unusual shaped galaxy like toothpicks, rings, or little groupings of stars.
What was the big bang?
an explosion
The third planet from the sun???
US, EARTH, SIMPLEEEE
Larger stars have a shorter_______ ending in a ________
Larger stars have a shorter lifespan ending in a superova
Galaxies consist of what?
Stars, Planets, vast clouds of gas and dust, and many other space objects. All these moving parts are bound together by gravity. I swear if you said stars ur done.
Is the universe still expanding?
YESSSSSS!!!
Name a planet
you should have named earth....If you didnt your dumb
True or false?
Smaller stars have a longer lifespan and usually turn into white dwarfs.
TRUE DUMMY