Topic
Planet formation
4 questions tagged Planet formation — spanning every one of the seven Ws.
whose
Whose calculations first predicted that a planet could form from a disk of gas and dust?
Pierre-Simon Laplace proposed the nebular hypothesis in the late 18th century. He argued that the Solar System formed from a rotating cloud of gas and dust.
AstronomyPlanet formation
what
What is planetary differentiation?
Planetary differentiation is the process by which a young planet separates into layers by density, such as core, mantle, and crust.
SpacePlanet Formation
what
What is a protoplanetary disk?
A protoplanetary disk is a rotating disk of gas and dust around a young star where planets can form.
SpacePlanet Formation
when
When was the first image of a protoplanetary disk taken?
The first clear images of protoplanetary disks around young stars emerged in the 1990s.
SpacePlanet Formation