
Star formation - Wikipedia
As a branch of astronomy, star formation includes the study of the interstellar medium (ISM) and giant molecular clouds (GMC) as precursors to the star formation process, and the study of …
Stars - NASA Science
May 2, 2025 · Stars are giant balls of hot gas – mostly hydrogen, with some helium and small amounts of other elements. Every star has its own life cycle, ranging from a few million to …
Star - Formation, Evolution, Lifecycle | Britannica
Oct 27, 2025 · Star - Formation, Evolution, Lifecycle: Throughout the Milky Way Galaxy (and even near the Sun itself), astronomers have discovered stars that are well evolved or even …
Star Formation - Harvard–Smithsonian Center for Astrophysics
Star formation happens in interstellar molecular clouds: opaque clumps of very cold gas and dust. The process starts when some of those clumps reach a critical mass, allowing them to …
How Do Stars Form? A Stellar Journey from Dust to Dazzle
Oct 13, 2023 · The birth of a star is a captivating balance of gas, dust and energy. The transition from quiet cosmic particles to radiant celestial bodies is a process as intricate as it is …
The formation of stars - ESA/Hubble
Hubble discoveries in the field of star formation in the early Universe include the realisation that stars and galaxies formed earlier in cosmic history than previously thought.
How do Stars Form? The Science Behind - Astronomy Explained
Nuclear fusion starts in its core, and the star lights up, becoming a main sequence star — like our Sun! This is just a very short, simple, nano-second explanation of how stars form.
Star Formation – Definition & Detailed Explanation - Sentinel …
Oct 17, 2025 · Star formation is the process by which dense regions within molecular clouds in interstellar space collapse and form stars. These regions are known as stellar nurseries, …
Star Formation - Teach Astronomy
The Sun formed when a diffuse interstellar cloud contracted and produced a central star surrounded by a dusty nebula. Our solar system has left us with a set of clues that indicates a …
21.1 Star Formation - Astronomy 2e | OpenStax
Let’s discuss what happens in regions of star formation by considering a nearby site where stars are forming right now. One of the best-studied stellar nurseries is in the constellation of Orion, …