A Visual Guide to Our Solar System [Infographic]
Our solar system is a 4.57 billion years old planetary system that includes a central star and all the natural space objects (planets) orbiting the Sun.
![A Visual Guide to Our Solar System [Infographic]](https://earthhow.com/wp-content/uploads/2018/08/Solar-System-Infographic-425x319.png)
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![Supermassive Black Holes: The Center of Galaxies [Infographic]](https://earthhow.com/wp-content/uploads/2019/02/Supermassive-Black-Holes-425x319.png)
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.
![Human Evolution: A Timeline of Early Hominids [Infographic]](https://earthhow.com/wp-content/uploads/2018/08/Human-Evolution-425x319.png)
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.
![Neptune Facts: The Big Blue Planet [Infographic]](https://earthhow.com/wp-content/uploads/2018/06/Neptune-425x319.png)
Neptune Facts: The Big Blue Planet [Infographic]
Planet Neptune is the farthest planet from the sun at 4.495 billion kilometers from the sun. Neptune has some remarkable facts like its 14 moons and tilt.
![9 Facts About the Moon [Infographic]](https://earthhow.com/wp-content/uploads/2018/06/Moon-425x319.png)
9 Facts About the Moon [Infographic]
Earth’s moon was formed at the same time that Earth did. Interesting moon facts include its gravity is 1/6 of Earth and temperature range of -173°C to 127°C
![How Much Space Junk Orbits Earth? [Infographic]](https://earthhow.com/wp-content/uploads/2018/08/Space-Junk-0-425x319.png)
How Much Space Junk Orbits Earth? [Infographic]
There is over 5500 tons of space junk above Earth’s surface. They mostly consist of small and medium debris within 700 – 36,000 km range in the atmosphere.
![5 Facts About the Sun [Infographic]](https://earthhow.com/wp-content/uploads/2018/08/Sun-Composition-425x319.png)
5 Facts About the Sun [Infographic]
Today, we’re exploring facts about the sun. First, you have to realize the enormous size of the sun. It’s so big that nearly 1300 Jupiters can fit the sun!
![The History of the Universe: The Big Bang and Beyond [Infographic]](https://earthhow.com/wp-content/uploads/2018/08/Big-Bang-Theory-Phases-425x319.png)
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.
![Earth Timeline: A Guide to Earth’s Geological History and Events [Infographic]](https://earthhow.com/wp-content/uploads/2018/07/Earth-Timeline-1-425x319.jpg)
Earth Timeline: A Guide to Earth’s Geological History and Events [Infographic]
Since Earth’s creation, oceans, continents and life have emerged. From evolution to extinction, here are the geological events and history of Earth timeline
![7 Red-Hot Planet Mercury Facts [Infographic]](https://earthhow.com/wp-content/uploads/2018/06/Mercury-425x319.png)
7 Red-Hot Planet Mercury Facts [Infographic]
Not only is planet Mercury the closest to the sun, but it has extreme temperatures. Facts about Mercury: Its long comet-like tail, craters and unusual orbit
![Universe Expansion: The Farthest Galaxy from Earth [Infographic]](https://earthhow.com/wp-content/uploads/2018/12/Universe-Expansion-425x319.png)
Universe Expansion: The Farthest Galaxy from Earth [Infographic]
The universe is immeasurable in size. Universe expansion is the theory that galaxies and all matter in space are increasing in distance between each other.
![10 Planet Venus Facts [Infographic]](https://earthhow.com/wp-content/uploads/2018/08/Venus-425x319.png)
10 Planet Venus Facts [Infographic]
Planet Venus neighbors the Earth. It’s the second planet closest the sun. Other facts include its counterclockwise rotation and how it rains sulfuric acid.
![5 Facts of Ice-Cold Planet Uranus [Infographic]](https://earthhow.com/wp-content/uploads/2018/06/Uranus-425x319.png)
5 Facts of Ice-Cold Planet Uranus [Infographic]
Planet Uranus is the coldest and has the 3rd largest radius for any planet in the solar system. It’s tilted at more 90°, it has faint rings and has 27 moons.
![What Are the 4 Layers of the Atmosphere? [Infographic]](https://earthhow.com/wp-content/uploads/2017/07/Earth-Atmosphere-Layers-425x319.png)
What Are the 4 Layers of the Atmosphere? [Infographic]
There are 4 primary layers of the atmosphere on Earth: troposphere, stratosphere, mesosphere and thermosphere. The ionosphere and exosphere are above those.
![15 Facts About Mars: The Remarkable Red Planet [Infographic]](https://earthhow.com/wp-content/uploads/2018/06/Mars-425x319.png)
15 Facts About Mars: The Remarkable Red Planet [Infographic]
In terms of space exploration, Mars has been the greatest frontier for discovery. From its red color to marsquakes, here are 15 remarkable facts about Mars.