Supermassive Black Holes: The Center of Galaxies [Infographic]
All galaxies have supermassive black holes at the center of it. These collapsed stars are a few times the mass of a sun which run out of fuel and explode.
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What Are the 5 Koppen Climate Classification Types?
The Koppen climate classification catalogs Earth’s types of environments, which include tropical, dry, temperate, continental, and polar.
Taxonomic Classification: From Domain to Species
In biology, we categorize life by how similar organisms are with each other. Like a family tree, we find relationships by their classification of life.
13 Parts of a Volcano: The Anatomy of Volcanoes
Today, we explore 13 parts of a volcano. From tephra, fumaroles, magma, lava domes, pyroclastic flow to volcanic bombs, this is the anatomy of volcanoes.
Ocean Salinity: How Much Salt is in Oceans?
Oceans are salty because runoff transports minerals and salts from the surface. When ocean evaporates from heat, salt remains in the ocean and water rises.
Coral Reef Facts: Ocean Biodiversity Hotspots
Coral reefs are biodiversity hotspots for ocean life. Remarkably, about 1/4 of marine species reside in them. So the spotlight is on coral reefs for protection.
Cambrian Explosion: Life Diversification in the Oceans
The Cambrian explosion was the largest diversification of life in Earth’s history. Ocean life started as sparse and simple. Then, it remarkably diversified.
Paleozoic Era: Diversification of Life (540 to 252 million years ago)
The Paleozoic Era marked the first fossil records of animal life.The Cambrian explosion was the largest diversification of life in Earth’s history.
What Are the 4 Levels of the Food Chain?
All living things rely on each other in the food chain. Energy transfers through living organisms from predators, herbivores, producers and decomposers.
3 Types of Volcanoes: Stratovolcano, Shield and Cinder Cone
The 3 types of volcanoes are stratovolcanoes, shield volcanoes and cinder cones. Based on their geography, volcanoes take different appearances.
100+ Branches of Earth Science
Earth scientists need all the *sciences* to understand how the Earth works. This list of 113 branches of Earth Science is the most in-depth you’ll ever find
Ocean Exploration: 20% Explored, 80% Unexplored
We’ve mapped 100% of oceans at 5 km resolution using satellite radar. We’ve mapped 20% with bathymetry sonar. But nearly 80% of oceans have gone unexplored.
A Guide to Earth’s Lithosphere
Earth scientists compare the lithosphere to a thin, solid and brittle eggshell encasing our inner planet or a thick piece of wood that dries and breaks.
10 Unbelievable Weather and Climate Facts
Weather patterns have tremendous impacts on people and ecosystems on Earth. Let’s get started with this list of 10 unbelievable climate and weather facts.
Human Evolution: A Timeline of Early Hominids [Infographic]
Since about 4 million years ago, humans have evolved from early hominids to modern humans. Here are 14 species examples from human evolution now extinct.