General Astronomy Questions

1.     Which is the hottest planet in our solar system ?

        Ans. Venus.

2.     Which rock can float in water ?

        Ans. Volcanic rock(also known as pumice).

3.     Which is the world's largest desert ?

        Ans. Sahara.

4.     Where are Niagara Falls located ?

        Ans. On the border of USA and Canada.

5.     Which is the largest living structure in the world ?

Ans. Great Barrier Reef.

6.     Which is the the largest structure found in the universe?

Ans. Sloan Great Wall(a super cluster of galaxies, about 1.37 billion light years wide.)

7.     Which is the largest planet in solar system ?

       Ans. Jupiter.

8.      Which planet is also known as red planet ?

       Ans. Mars.

9.     Which planet is nearest to sun ?

Ans. Mercury.

10.       Which is the only substance in universe that can not be in solid form ?

 Ans. Helium.

11.        Which is the coldest place of the universe ?

Ans. Wolfgang Ketterles lab in Massachusetts on earth.

12.        Which is the most luminous star ?

Ans. Pistol star.

13.        From earth, how many stars are visible with naked eyes?

 Ans. 8 thousand.