Crossword
Complete the crossword, then click on "Check" to check your answer. If you are stuck, you can click on "Hint" to get a free letter. Click on a number in the grid to see the clue or clues for that number.
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Check
Across:
1.
The nearest star is
3.
The word is defined as the distance at which one astronomical unit subtends an angle of one arc second
5.
The distance travelled by light in one year is called a
Down:
2.
The world’s first artificial satellite launched was Sputnik-1 by
4.
The name of our galaxy is
OK