Planetary science

Microscopic crystals extracted from meteorites could help settle a debate about the birth of our patch of the Milky Way.

Climate science is the most significant scientific collaboration in history. This series from Quanta Magazine guides you through basic climate science — from quantum effects to ancient hothouses, from the math of tipping points to the audacity of climate models.

Earth’s climate is chaotic and volatile. Climate change is simple and predictable. How can both be true?

Earth’s radiation can send some molecules spinning or vibrating, which is what makes them greenhouse gases. This infographic explains how relatively few heat-trapping molecules can have a planetary effect.

New reconstructions of 540 million years of climate history show the planet tumbling between icehouse and hothouse states, revealing how rare and vulnerable our temperate moment is.

A team of scientists has investigated how Earth’s twin became so inhospitable, and whether the same will happen to our planet.

Strong new evidence suggests that primordial material from the planet’s center is somehow making its way out. Continent-size entities anchored to the core-mantle boundary might be involved.

Recent flybys of the fiery world refute a leading theory of its inner structure — and reveal how little is understood about geologically active moons.

Astronomers are ready to search for the fingerprints of life in faraway planetary atmospheres. But first, they need to know where to look — and that means figuring out which planets are likely to have atmospheres in the first place.