Articles

What Are the 3 Types of Galaxies?

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

How Does the Supercontinent Cycle Work?

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

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?

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.

What Do Geotechnical Engineers Do?

What Do Geotechnical Engineers Do?

Geotechnical Engineers understand the behavior of earth materials. For example, they interpret rock and soil samples to investigate subsurface conditions.