Answer :
Final answer:
Stars are formed in clouds of gas and dust through gravitational collapse triggering nuclear fusion. Triggered star formation involves massive stars emitting energy to compress material and initiate new star formation. The search for stars in formation focuses on regions with dense cold gas clouds.
Explanation:
Stars are formed in clouds of gas and dust called nebulas where the collapse of these clouds due to gravity triggers the formation of new stars. The compression in the dense regions allows for gravitational collapse and ultimately the birth of a star when nuclear fusion begins.
Triggered star formation occurs when massive stars emit radiation and energy, heating the gas around them and causing it to expand. The accumulation of hot gases can lead to the compression of surrounding material, overcoming pressure and initiating the formation of new stars.
If we want to find stars in the process of formation, we look for dense and cold clouds of gas and dust in regions with abundant raw material needed for star formation.
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