Gas giants originate from one of two processes. The first method is called core accretion, explains Ravit Helled, a professor of theoretical astrophysics at the University of Zürich.

TOI-6894 b, the largest exoplanet relative to its host star yet seen, doesn’t fit the most widely accepted formation model ...

However, Bryant has tried to envisage a process of core accretion by halves. Given that TOI-6894b's overall mass is less than Saturn, a runaway accretion process might not have been required to ...

Core accretion requires bits of solid stuff to smash together to form bigger and bigger chunks. There is little doubt that this is how Earth and the other terrestrial planets came into being, most ...

A planetary core forms first through accretion (gradual accumulation of material) and as the core becomes more massive, it eventually attracts gases that form an atmosphere.

“There shouldn’t be enough solid material to form those objects out there through a core-accretion paradigm.” In the 1980s, astronomers proposed the idea that gravitational instability could ...

Astronomers recently discovered a hefty exoplanet orbiting a star similar to our sun, and it has researchers puzzled due to its tremendous density.

Their results also add context to planetary formation models developed over decades suggesting that Jupiter and other similar gas planets formed through a process called core accretion in which a ...

Exoplanets form in protoplanetary disks, a collection of space dust and gas orbiting a star. The leading theory of planetary formation, called core accretion, occurs when grains of dust in the ...