Explanation:

Stars are born deep inside giant clouds of cold molecular gas and dust called stellar nurseries. These vast structures are found throughout our galaxy and are often associated with regions of active star formation. Within these clouds, dense cores form where conditions are right for the onset of nuclear fusion. As gravity collapses these cores, protostars are born. Surrounded by a swirling disk of gas and dust, these protostars will eventually evolve into fully-fledged stars.

One such stellar nursery is the massive Orion Nebula, located about 1,500 light-years from Earth in the constellation Orion. This iconic region is home to several bright young stars that have blown away the surrounding gas and dust, creating dramatic shapes and structures. Observations from NASA's Spitzer Space Telescope have revealed the presence of hot spots within the nebula—areas of intense star formation where protostars are radiating infrared light. These observations provide valuable insights into the early stages of star formation and help astronomers understand how stars come to be.