The shape of the Earth's oceans and continents is dictated inexorable movements of the tectonic plates, but where did those plates even come from?

Discover how scientists have used iron isotopes to determine the likely origin of the Mars-sized planet named Theia.

Are planets in the solar system that are closer to the Sun older than the ones further away? – Gavriel, age 10, Paducah, Kentucky A cloud of collapsing gas created our Sun, the first thing to form in ...

Astronomers have discovered an extrasolar planet with the largest core of any known planet. The discovery is especially exciting to planet formation theorists, because it provides extremely strong ...

The organic molecules that were the building blocks for life on Earth could have formed in the dusty disk that surrounded our sun before the solar system had planets, a new computer model shows.

The James Webb Space Telescope (JWST) has identified half a dozen free-floating planets wandering alone in the Perseus Molecular Cloud. The planets, ranging between five and 10 times the mass of ...

Earth’s crust looks solid from the surface, but it is broken into a shifting mosaic of slabs that slowly rearrange oceans and ...

(The Conversation is an independent and nonprofit source of news, analysis and commentary from academic experts.) Curious Kids is a series for children of all ages. If you have a question you’d like ...