New stars are formed in some nebulae called

• A. solar flares
• B. stellar nurseries
• C. dark nebulae
• D. galaxy clusters

Answer: (B)

New stars form in stellar nurseries, the dense, cold pockets inside nebulae where gas and dust can collapse under gravity. In these regions, gravity pulls material together until clumps became protostars, which eventually heat up enough to ignite fusion and become stars. The phrase “stellar nursery” is the standard way to describe these star-forming regions, and they’re often associated with bright, active areas in the sky, like the Orion Nebula.

Solar flares are bursts of energy from the Sun, not sites where stars are born. Dark nebulae are dense dust clouds that block light, and while they can host star formation, the label that specifically captures the idea of forming new stars is stellar nursery. Galaxy clusters are groups of galaxies, not nebulae, so they aren’t the places where stars form in this context.