1. Twelve constellations referred to as zodiac, are a group of stars.
2. Giordano Bruno was the first to determine that the day on the Mars was, like our, roughly twenty-four hour long.
3. On 20th July 1969, two American scientists landed on moon of earth.
4. The first ever artificial satellites was launched by Russia.
5. Roberta Bondar was the first Canadian woman in space.

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