What do you call an object in space that gives of its own light and heat?

What travels from the object to your eye? What is the small disk found under the stage that regulates the amount of light that reaches the specimen in a microscope? Which heavenly body does not reflect light? How do you become first Indian women to land on the moon? How many new moons will occur in 2013? Do stars and planets form when the nebula collapses creating spinning balls of matter? What are small cool red stars called? Is a star cold or hot if it's blue? Should the money spent on space travel and investigations be diverted to medical research? What color are the stars in Jupiter? Are one star convverse real converse? What does the D battery month and year mean? Who observed that earth cast a curved shadow? How many rockets has space-x built? Is it true that buzz Aldrin suffer from dementia? When examining the red shift of galaxies outside your own every galaxy appears to be moving away from the obsever This obervation supports the Big Bang Theory because it indicates that? How do you use the word nimbostratus in a sentence? Why does a shadow form behind you when the sun shines? Which stage of the moon receives sunlight away from the moon? Why isn't a conic projection used to navigate a ship or aircraft?