Open World C1 | Unit 4 | Intergalactic Quiz

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How fast is the speed of light?

300,000 km/second

How many times wider is the Earth in comparison with the Moon?

The moon’s diameter is 3,476 km, the Earth’s is 12,742 km. Earth is roughly four times wider than the moon.

Appoximately how much does a NASA spacesuit cost in US dollars?

$12 m

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