A glow in the night sky or around your observing site caused by artificial light. It greatly reduces how many stars you can see. Special light-pollution filters can be used with your telescope to improve the visibility of celestial objects.
Mars Express achieves 25,000 orbits
Mars Express achieves 25,000 orbits by Erica Marchand Paris, France (SPX) Mar 28, 2024 Celebrating a significant milestone, ESA's Mars...