All about Space

Name all the planet in our galaxy in order.

Is there gravity in outer space?

Which is the smallest planet in our solar system.

What is happening to the sun at this moment?

What are X-rays used for?

What is the gravitational pull on the moon?

What type of gases are in the sun?

Why do people exercise in space?

Who was the person who said that the sun was in the middle of our solar system?

Is there oxygen on other planets?

Which planets would I want to visit.

Which planet is closes to the earth?

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What is the most harmful ray in the electromagnetic spectrums?