Unresolved sources

Unresolved sources are objects or phenomena in space that appear as a single point or blurry spot in telescopes, making it difficult to determine their exact structure or nature. For example, a distant galaxy or star cluster might look like one fuzzy point rather than many individual components. This happens because the object is either too far away or too small to be clearly distinguished with current instruments. Researchers study unresolved sources to gather clues about their properties, often using techniques like high-resolution imaging or analyzing their light to learn more about these distant cosmic objects.