A Beginner’s Guide to Earth Magnetic Field
The magnetic field gives us a layer out in space called the magnetosphere. Without it, Earth would be exposed to solar and cosmic radiation.
Articles
The Cenozoic Era: From Dinosaur Extinction to Human Evolution
The Cenozoic Era started with the extinction of dinosaurs and moved into the age of mammals.This led to the diversification and increase in size of mammals.
Was the Late Heavy Bombardment a Violent Stage in Earth’s History?
At the end of the Hadean Eon, the Earth was in the late bombardment stage. Earth and the entire solar system was pelted by asteroids, comets and objects.
The History of the Universe: The Big Bang and Beyond [Infographic]
What’s the history of the universe? Follow us on a journey that starts with the Big Bang. All the way to the formation of stars, galaxies and eventually us.
The Human Footprint: 8 Billion People on Earth
In flesh and blood, 7.6 billion humans live on Earth. The emergence of humans has left a profound impact. The demand for resources is the human footprint.
What Are the 3 Types of Galaxies?
Hubble galaxy classification assigns a class to galaxies based on their visual appearance. These classes of galaxies are ellipticals, lenticulars and spirals
Milky Way Galaxy: 200 Billion Stars and Our Solar System
Galaxies are just large accumulation of stars. For example, we live in the Milky Way galaxy. It houses about 200 billion stars including Alpha Centauri.
How Does the Supercontinent Cycle Work?
If you went 200 million years back in time, Earth was 1 supercontinent. Now, it’s made up of 7 separate continents. This is the supercontinent cycle at work.
15 Climate Feedback Loops and Examples
Climate feedback loops either amplify or reduce climate change. Positive feedback loops like permafrost melt amplifies climate change because it releases methane.
Earth Age: How Old Is the Earth?
By dating meteorites, we find the oldest rocks are 4.5 billion or so years old. Thus, we conclude the same staggering 4,543,000,000 years for Earth’s age.
A Guide to Groundwater: Earth’s Hidden Freshwater Supply
Despite the popular belief that groundwater exists as a huge lake underground, water actually exists in tiny pore spaces within rock and soil beneath our feet.
What Is Pangaea? Piecing Together the Supercontinent Jigsaw Puzzle
About 200 million years ago, all the continents were together as one giant supercontinent known as Pangaea. Over time, these continents have broken apart.
Mass Wasting: Weathering, Erosion and Transport
From the remarkable process of plates colliding and building mountains. They are only to be dismantled by mass wasting (weathering, erosion and transport).
What Is Biodiversity (Biological Diversity)?
Biodiversity or “biological diversity” refers to the variety or genetic diversity of species in an ecosystem. Ecosystems rely on biodiversity for resiliency.
What is Radioactive Decay Inside Earth?
Four radioactive isotopes inside Earth account for 50% of its internal heat. Like a slow cooker, they slowly release heat within the planet keeping it warm.