All about Earth
What causes the earth to experience seasons?
The tilt of the Earth's axis
Which planet is closest to the sun?
Mercury
What is nebular theory?
The theory that explains how our solar system was created
What is a star?
What is a galaxy?
A massive grouping of stars and planetary system, held together by gravity
How many days does it take earth to orbit the sun once?
365 days
Which planet a constant storm scientists don't understand the cause of?
Jupiter (the red spot)
What is big bang theory?
The theory that describes how our universe began
What is nuclear fusion?
The fusion of atomic nuclei
What is at the center of most galaxies?
A supermassive black hole
Which direction does the earth rotate?
(clockwise or counterclockwise?)
Counter clockwise
Uranus
What 2 elements are stars mostly made of?
Hydrogen and Helium
What type of galaxy is the Milky Way?
A spiral galaxy
What caused Earth's axis to tilt?
Something large collided with it during its early development
Which planet spins in the opposite direction of all the others?
Venus
What is redshift?
The increase of wavelengths of light as galaxies move away from us
When the core of a supermassive star collapses?
What is the name of the galaxy slowly approaching the milky way?
Andromeda
23.5 degrees
Mars
What is CMB (cosmic microwave background) radiation?
Low level background radiation measured across the universe left over from the energy of the Big Bang
What keeps a star from collapsing in on itself?
The pressure created from nuclear fusion
What causes an elliptical galaxy to have the shape/structure it does?
Old age, many collisions with different objects over time disrupts its shape