Planets
The Sun
Comets
Meteors
Astronomers
100
9
How many planets do we have today
100
The sun
What is the closest star to the Earth
100
The shape of the comets orbit
What is elliptical
100
Bits of rocks
What is a meteor made of
100
Steven Hawking
Who's the most famous living astronomer
200
Mercury Venus Earth Mars Jupiter Saturn Uranus Neptune
What are the planets in order
200
Sun protection factor
What does SPF stand for
200
Oort cloud
Where are comets formed
200
30
Approximately how many meteor shower occur each year
200
The creator of the light bulb
Who is the Thomas Edison
300
An elipse
What happens to Earths orbit speed as it gets closer to the sun
300
melanins
What in your skin protects you from the sun
300
The Kuiper Belt
Where are comets usually located
300
The constellation in where their radiant is located
Where does a meteor get its name
300
A developer of LemaƮtres Big Bang Theory
Who is George Gamow
400
3
How many planets have rings
400
Continuous explosions
Where does the sun gets it energy
400
A few meters
How small can the nucleus of a comet be
400
About 2000 years ago
When was the first meteor shower discovered
400
Friedmann equation
What did Alexander Friedmann make
500
248 years
How long does it take pluto to orbit around the sunday
500
1060 degrees
How hot do solar flares burn
500
The perihelion
What is the closest point to a comets orbit
500
Chinese annals
Who discovered meteor showers
500
Accurate and compressive astronomical and planetary observations
What is Tycho Brahe known for
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