What is beyond our solar system?

Our Milky Way galaxy is a part of a neighborhood of how many galaxies?
29
54
78
125
Dark matter...?
Makes up 55% of the universe
Is viewable through regular telescopes
Is invisible
None of the above
How many galaxies do scientist think are surrounded by emptiness?
9 million
2 trillion
10 thousand
100 billion
Stars in the inner and outer orbits are moving...?
At the same speed
In opposite directions
At extreemly different speeds
500 miles per hour
What is the force causing our universe to get bigger?
Dark energy
Gravity
Ozone
Andromeda
What do all stars in the Milky Way galaxy orbit?
Earth
Sun
Black hole
a single star
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