Did you know that the Earth is not a sphere? That we’re traveling at 67,000 mph around the Sun? That Antarctica holds the bulk of the world’s fresh water?

We combed through our archives to compile a list of only 10 of Earth’s most impressive and fascinating facts.

Earth is the third rock from the Sun

Earth is the third planet from the Sun and the only one with a free-oxygen atmosphere, liquid water on its surface, and, most importantly, life. Like Mercury, Venus, and Mars, Earth has a rocky atmosphere.

The Earth is a condensed disk.

The World isn’t a perfectly round sphere. As Earth spins, gravity pulls us toward the middle (assuming Earth is a perfect sphere for the sake of explanation), while a centrifugal force pulls us outward. The centrifugal force at the equator, however, is not exactly opposed to gravity since it operates perpendicular to the Earth’s axis, and the Earth’s axis is tilted. At the equator, extra masses of water and earth are pushed into a bulge, or “spare tire,” around our world, compounding the imbalance.

There is a waistline on the globe.

Mother Earth has a big waistline: the globe’s diameter at the equator is 24,901 miles (40,075 kilometers). Bonus fact: If you stood on the equator, you’d weigh less than if you stood on one of the poles.

The World is shifting.

A true-color shot of the North Pole taken on May 5, 2000, by an instrument on NASA’s Terra spacecraft, with sea ice in white and open water in black.

You may appear to be still, but you’re actually moving — quickly. You may be spinning through space at just over 1,000 miles per hour depending on where you are on the planet. People who live on the equator travel the fastest, while those who live at the North or South poles are perfectly still. (Imagine spinning a basketball on your finger.) A random point on the equator of the ball has a longer distance to move in a single spin than a point near your finger. As a result, the equator’s point is going faster.)

The Sun revolves around the earth.

Oh, and the Earth isn’t just spinning: it’s still traveling at 67,000 miles per hour (107,826 kilometers per hour) around the Sun.

The Earth is an ancient planet.

Researchers determine the Earth’s age by dating the planet’s oldest rocks as well as meteorites found on the surface (meteorites and Earth formed at the same time, when the solar system was forming). What did they discover? The age of the Planet is estimated to be 4.54 billion years.

The earth is a recycling machine.

The land you’re walking on is constructed from recycled materials. Igneous rocks are transformed into sedimentary rocks, metamorphic rocks, and back again by the Earth’s rock cycle.

Although the cycle isn’t a full circle, the fundamentals work as follows: Magma increases from the depths of the Earth and solidifies into rock (the igneous part). The rock is uplifted to the surface by tectonic forces, where erosion shaves away at it. These microscopic particles are deposited and buried, and pressure from above compacts them into sedimentary rocks like sandstone. If sedimentary rocks are buried much deeper, pressure and heat cause them to “cook” into metamorphic rocks.

Of course, sedimentary rocks can be re-eroded and metamorphic rocks can be re-uplifted along the way. However, metamorphic rocks may be transformed back into magma if they become trapped in a subduction zone, where one piece of crust pushes under another.

Our moon trembles

The moon of Earth seems to be dormant and inactive. Moonquakes, or “earthquakes” on the moon, do, however, keep things a little shaky. Earthquakes are less common and less powerful on the moon than they are on Earth.

Moonquakes, according to USGS scientists, tend to be due to tidal stresses induced by the changing distance between the Earth and the moon. Moonquakes are much more likely to happen at great depths, about halfway between the lunar surface and its base.

The largest earthquake occurred in Alaska.

The largest earthquake that struck the United States as of March 2016 was a magnitude-9.2 quake that hit Prince William Sound, Alaska, on Good Friday, March 28, 1964. According to the United States Geological Survey, the world’s largest earthquake struck Chile on May 22, 1960, with a magnitude of 9.5. (USGS).

Libya is the hottest spot.

According to NASA Earth Observatory, the hottest spot on Earth is El Azizia, Libya, where temperature data from weather stations show it reached 136 degrees Fahrenheit (57.8 degrees Celsius) on Sept. 13, 1922. There were probably hotter places outside of the network of weather stations.

Want to keep reading? Read about The 10 Interesting World Facts You Won’t Believe Are True!