World Space Week

World Space Week

This week is World Space Week.

I see hundreds of stars. I wonder how many stars there are in space? How could we count them all? How big is the biggest star? How far away are the stars?


What questions do you have about space? What are you curious about?

5 Responses »

  1. I can see the earth in the air.
    I can see so many stars in the sky
    I think there’s a rocket going back to earth
    I wonder if he going back home

  2. I would like to know:
    How many craters are on the moon?

    Answer: There are lots of craters on the moon and most are at least 1 kilometre wide. Some are as big as 20 kilometres wide. This means that there are about 181,000 craters on the moon.

  3. There are about 10 billion galaxies in the observable universe! The number of stars in a galaxy varies, but assuming an average of 100 billion stars per galaxy means that there are about 1,000,000,000,000,000,000,000 (that’s 1 billion trillion) stars in the observable universe! We can count the stars visible to the naked-eye in the night sky, but it’s difficult to come up with an exact number. … Because there are infinite numbers of stars in the sky.Our sun is the nearest star to Earth. After the sun, the next nearest star is 4.3 light years away. A light year is the distance light travels in one year.

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