What is the scientific term for sunlight?

What can you do when you have no one to see? Although a man who weighs 175 pounds on Earth would be lighter on the moon and heavier on Jupiter his would not be different? Are planets celestial bodys? The segment of the atmosphere which blends into interplanetary space is called? Why it is not advisable to view an eclipse? How can you tell if your 1969 quarter is silver? What are the names of the stars that make up Libra the constellation? Why does astronauts experience weightlessness in space? Who and what were the first words in space? How do hurricanes and cyclones affect the surface of the earth? Why is knowing the temperature in a star's core so important in knowing what nuclear reaction can occur there? How many fuel tanks are in a space shuttle? Around which time period was the microscope invented? Which place of earth is visible from moon? Will a self inflated raft help in the moon? What would happen to a sealed bag of chips letf in the sun? What type of star alpha? Why planet revolve in anticlockwise direction around sun? What happens to the low mass and meduim mass stars when they run out of fuel? What are names of the stars in the constellation Perseus?