Nebulae are giant clouds of dust and gas in space. They serve two primary roles in the universe's lifecycle:
Planets are formed from the leftover debris of star formation. Planets Reported to Shape Planetary Nebulae PLANETS STARS NEBULAS
Some nebulae are formed from the gas and dust ejected by dying stars, such as Supernova Remnants . 2. Stars: The Engines of the Universe Nebulae are giant clouds of dust and gas in space