Universe Facts

Your Body is Empty Space
Your Body is Empty Space

Almost all of the ordinary matter (99.9999999% of it) is empty space. If you took out all of the space in our atoms, the entire human race (all 7.7 billion of us) would fit into the volume of a sugar cube.

Why is Mars Red?
Why is Mars Red?

Mars is red because its surface contains a lot of rust.

Venus
Venus

The hottest planet in the solar system is Venus, with an estimated surface temperature of 864 F (462 C).

How Many Stars Are There?
How Many Stars Are There?

There are about 100,000,000,000 stars in the Milky Way alone.

Earth's Velocity
Earth's Velocity

The Earth's average velocity orbiting the sun is 110,000 km per hour.

What Causes Tides?
What Causes Tides?

High and low tides are caused by the moon.

Hydrogen
Hydrogen

Hydrogen is the most abundant element in the Universe (75%).

How Far is The Moon?
How Far is The Moon?

The average distance between the Earth & the Moon is 238,855 miles (384,400 km).

How Big is the Moon?
How Big is the Moon?

The moon is 27% the size of the Earth.