Accretion is one of the most fundamental processes in the cosmos. It is a universal phenomenon triggered by gravity, and the process by which bits of matter accumulate and coalesce with more bits of ...
Planets, like those in our solar system, form in a bottom-up process where small bits of rock and ice clump together and grow larger over time. But the heftier the planet, the harder it is to explain ...
Massive star formation (above 8 M⊙) unfolds within dense molecular clouds, where gravitational collapse and angular-momentum conservation give rise to rotating protostellar discs and bipolar outflows.