What happens to meteors when they enter the earth’s atmosphere?
When meteors enters the earth's atmosphere, its speed is very high. The friction due to the Earth's atmosphere heats it up. On heating up, it emits light and glows producing a bright streak of light. Since they get evaporated quickly, the bright streaks lasts only for a short duration of time.
Why life is not possible on the planet Mercury?
How is the pole star located in the sky? Why is it so special?
Explain the importance of stars for the people in ancient times.
Name two planets which appear as ‘morning star and evening star’ and why?
