Earth & Space

Martian Soil: Composition, Hazards, and Uses

Neanderthal Art: What the Discoveries Reveal About Them

Has Alien Life Been Found? The Current Search

What Is the Humidity Like in Oregon?

Ordovician Trilobites: Their World and Fossil Legacy

Season Science: What Causes the Earth’s Seasons?

Kelt 9b: The Hottest Known Exoplanet in the Universe

Cerutti Mastodon: Evidence Rewriting Human History?

A Simple Drawing of the Water Cycle, Explained

The Late Triassic World: Dinosaurs, Pangea, and an Extinction

What Caused the Great Ice Age Extinction?

What Is a Trace Gas and Why Is It Important?

The Effects of Isolation and Confinement in Space

Brine Pools: The Deadly Underwater Lakes Teeming With Life

What Is Ocean Salinity and Why Does It Matter?

Venus’s Atmosphere: Why Is It So Extreme?

What Is a Worm Fossil and What Does It Reveal?

The Late Cretaceous: Life in the Final Age of Dinosaurs

Banded Iron Formations: How They Formed and Why They Matter

Brine Pool Ocean: The Toxic Lakes on the Seafloor