Question 1 / 8
How many stars are there in our galaxy ?

200
200 000
200 million
200 billion


























Question 2 / 8
Our galaxy goes round on itself :

in 24 hours
in 1 year
in 250 million years
in 15 billion years


























Question 3 / 8
If you reduced the distance between Earth and the Sun to 1 millimeter, how wide would be our galaxy ?

5 centimeters
34 meters
6300 kilometers
2 billion kilometers


























Question 4 / 8
What does "supernova" mean ?

huge dust accumulation coming before the birth of a star
big star ending its life with a huge explosion
it's the name of an intergalactic superhero
it's the name of our nearest neighbouring galaxy


























Question 5 / 8
How many rings does the Saturn planet own ?

0
1
2
6


























Question 6 / 8
The Moon revolves around the Earth :

in 2 seconds
in 24 hours
in 27 days
in 365 days


























Question 7 / 8
If you reduced the Sun to the size of an orange, how far would be the nearest star :

2 meters
200 meters
20 kilometers
2000 kilometers


























Question 8 / 8
Which one of these names DON'T refer to a star ?

Antares
the Evening Star
the Sun
Sirius


























End of the game

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Educational games - Astronomy (Difficult level)
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