What is currently the best theory of how our universe began?
The Big Bang theory
100
What galaxy do we live in?
The Milky Way
100
What type of power allows a star to burn so brightly?
Nuclear Fusion
100
Name all of the planets in our solar system in the correct order.
Mercury Venus Earth Mars Jupiter Saturn Uranus and Neptune
100
Our universe is currently expanding
True
200
Roughly how old is our universe?
14.5 billion years old
200
What is the next closest galaxy to us?
Andromeda
200
During Nuclear fusion, atoms of hydrogen slam into each-other. What do they become once they collide?
Helium
200
What are the three criteria for a space object to be classified as a planet?
Must have enough gravity (mass) to form itself into a sphere (hydrostatic equlibrium)
Must have cleared its orbit
Must orbit the sun
200
Big stars live longer than small stars
False
300
When a object orbits another object and the orbit repeats itself without hurtling off into space or slamming into the larger object, what kind of orbit is it?
Closed Orbit.
300
What gives Galaxies their shape?
Gravity
300
What happens to a small star at the end of its life?
It becomes a white/black dwarf
300
What's the best theory of why Venus and Mercury do not have moons?
Too close to the sun
300
We call the large clouds of gas in space Gravitons.
False
Nebulas
400
What do we call the zone that is not too hot and not too cold that we believe life can exist in?
Goldilocks Zone
400
When looking at pictures of galaxies, patches of reddish pink are present. What are these patches full of?
Hydrogen Gas
400
How are black holes formed?
The gravitational pull of the star is so great it overpowers the atomic forces
400
Name one place in our solar system where we believe there might be life
Europa, Titan, Enceladus, Io, Mars
400
Saturn is the only planet with rings in our solar system
False
500
We measure very long distances in light years however we measure long distances in AUs what does that stand for?
Astronomical Units
500
Which type of Galaxy has mostly old stars in it?
Elliptical
500
Why are we said to be made of "star stuff?"
The atoms in our body were formed from explosions of large stars
500
Which planet is named after the Roman Goddess of love?
Venus
500
When they collapse large stars always become blackholes