Q.1: What is a shooting star?
Ans: A shooting star is a meteor that comes from space, burning out in the Earth's upper atmosphere.

Q.2: About how many stars can you see on a really clear night with the naked eye?
Ans: The total number of star visible with the naked eye cannot be more than 6000 but it is seldom possible to see more than 2500 at any one time, since faint stars near the horizon are bound to be lost.

Q.3: How is twinkling of stars? Explain.
Ans: Stars twinkle for two main reasons. The intensity of brightness of the stars decreases and increases of the atmosphere around the Earth. Different layers of gasses also have different temperature which bring visual changes.

Q.4: What is Orion Nebula?
Ans: The Orion Nebula, as seen from the Earth, is a star-forming cloud about 1,600 light years away. Ultraviolet light from the hot, young stars ionizes the gas in the nebula, causing it to glow.

Q.5: Which planet in our Solar System has beautiful rings around it?
Ans: It is the Saturn planet. The celebrated rings of the giant Saturn are composed of thousands of rippling, spiraling bands from 6 to 60 miles in width.