# Outer Space

## Moon Gravity: Your Weight on the Moon

The gravity of the moon is 1/6 of Earth. If you stepped on a scale on the moon, you could subtract 83.5%. So 100 kg in weight would be 16.5 kg on the moon.

## 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.

## Solar Radiation: How Sunlight Heats the Planet

Our sun is 99% of the total mass of the solar system. It’s this energy from the sun’s thermonuclear reactions that heats the Earth from solar radiation.

## Main Sequence Star: Our Sun’s Thermonuclear Reaction

Our sun is a main sequence star. This just means that it burns hydrogen into helium and goes through this “main sequence” for about 95% of its life span.

## Where is the North and South Pole?

If you stick a pencil through Earth at the point of rotation, these 2 points are the north/south poles. Geographically, it’s where longitude lines converge.

## 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.

## How To Define the Geosphere

It’s difficult to pinpoint an exact definition for the “geosphere” because it’s used in several different ways. But here are 2 ways to define the geosphere.

## Earth Statistics: Straight-Up Stats of Earth

This list of Earth statistics provides all the numbers of our home planet. For example, here are size, rotation, density, temperature, orbit, age and more.

## How Gravity Sculpted the Earth

What brings order on Earth is gravity. For all matter, it’s always at work. This is how gravity works for ocean tides, planet formation and escape velocity.

## What is the Goldilocks Zone?

Lucky for us, Earth is in the Goldilocks zone. The range where liquid water persists is 0.99 to 1.7 AU. But it doesn’t necessarily mean life or water exists.

## 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.

## 7 Planet Saturn Facts: Beyond its Signature Rings [Infographic]

We all know planet Saturn for its iconic rings. But there’s more facts about Saturn like its weather, Titan and its the lightest planet in the solar system.

## 10 Colossal Facts About the Gas Giant Planet Jupiter [Infographic]

The gas giant known as Jupiter is the largest planet in our solar system. Other interesting facts include its 79 moons, weather patterns and huge auroras.

## 9 Facts About the Moon

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 Did the Moon Form?

The giant impact hypothesis models the formation of our moon. It starts with a Mars-sized object hitting Earth. This object (moon) still remains in orbit.