1. The planet with the shortest rotation time around its axis is Jupiter.
2. The planet with the longest rotation time around its axis is Venus.
3. Curiosity is the name of space shuttle of US which has recently landed on the planet of Mars.
4. The first space shuttle launched by United States on April 12, 1981 was Columbia.
5. Southern Cross which is constellation found in the southern region of the night sky consists of five stars.

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