Star formation is the process by which dense regions within molecular clouds in interstellar space —sometimes referred to as "stellar nurseries" or "star-forming regions"— collapse and form stars. [1]

May 2, 2025 · Stars form in large clouds of gas and dust called molecular clouds. Molecular clouds range from 1,000 to 10 million times the mass of the Sun and can span as much as hundreds of light …

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 collapse under …

5 days ago · 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 approaching …

Nov 13, 2025 · This article explains the key stages of star formation and stellar evolution, providing a clear overview of how stars are born, live, and eventually die.

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.

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.

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, where …

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 magnificent. Read on …

The basic idea of triggered star formation is this: when a massive star is formed, it emits a large amount of ultraviolet radiation and ejects high-speed gas in the form of a stellar wind.