👉 A nebula is a cluster of gas and dust that surrounds galaxies, stars, and other celestial objects. Nebulas are often composed of many small, closely packed clouds or filaments that appear as a single glowing object. They can be very faint, with only a few hundredths of a degree visible from Earth, but they can also be very bright and visible to the naked eye. Nebulae are an important part of our understanding of astronomy, as they provide us with insights into the
