Hi, I have a few questions that I couldn't find the answer to and I need this for my lab in Science.1. How do stars light up?2. How do galaxies light up?3. What is the source of all light in all galaxies in the universe? Thanks in advance!! :D
Uuuuh. Stars don't light up they are naturally lit because they are balls of fire. And try googling this **** :)
A star like our sun admits light from the reaction of gavity crushing hydrogen atoms super heating them causing nuclear fusion when this fusion happens it admits heat and light. Planets admit very little light but we see them because they reflect the light from stars. Galaxies light up because they contain many stars thus lighting the galaxy as well as all the bodys ( planets ) reflecting the light from its parent start. The source of all light in all galaxies in the universe comes from the many billions of stars that exsist in the universe.
