Nebulae are interstellar clouds where stars can form.
Nebulae are vast interstellar clouds of gas and dust where stars can form.
Nebulae are vast clouds of gas and dust in outer space, where new stars can form. Nebulae are often considered the birthplaces of stars, as the gas and dust within them can collapse under the force of gravity, eventually leading to the formation of protostars. These protostars then go through various stages of evolution, eventually becoming fully-fledged stars.
