Earth & Space

What Is a Millibar and How Is It Used to Measure Air Pressure?

What Makes a Beach a Beach? The Essential Elements

Pleistocene North America: Its Giants, Climate, and People

What Is a Mineralogist and What Do They Do?

Petrichor: The Science Behind the Smell of Rain

Deep Sea Hydrothermal Vents: What They Are & Why They Matter

Normalized Difference Vegetation Index: What It Is & Uses

What Is Slack Tide and Why Is It Important for Divers?

Saharan Dust Cloud: What It Is and Its Global Impact

What Is Selenite Crystal? Mineral, Meaning & Uses

Spring SST: How Sea Surface Temperature Changes in Spring

When Do Leaves Turn in Maine? Predicting Peak Foliage

What Was the Great Dying and What Caused This Extinction?

Wonderwerk Cave: A Cradle of Human History

SPEI Drought Index: What It Is and Why It Matters

The Europa Clipper Mission: A Search for Life

Nature’s Mantle: Inside Earth’s Layers and Tectonic Secrets

Blue Ice Antarctica: Surprising Polar Phenomenon

The Balearic Sea: Its Islands, Marine Life & Ecosystems

Continental Dynamics: Geology, Climate, and Biodiversity