What are facts about light pollution?
Light pollution is when many urban lights, such as street lights, reflect a lot of artificial light into the Earth's atmosphere - which obscures many different stars and is a disaster for astronomers.
Some FALSE facts on light pollution are: 1. Astronomers benefit from light pollution as it helps them to study stars. 2. All stars are visible in the night sky when viewed from a light polluted city. 3. Light pollution is good for the environment. 4. Light pollution doesn't affect human sleep cycles.