That the Sun makes up 99.86% of the Solar System’s mass! That means that all the planets put together (including Jupiter) as well as all the asteroids only make up about 0.14% of the Solar System’s mass

The Sun looks 1600 times fainter from Pluto than it does from the Earth.

That the amount of the Sun’s energy reaching the Earth’s atmosphere (known as the Solar constant) is equivalent to 1.37 kw of electricity per square metre!

The Earth orbits the Sun at an average velocity of approximately 30 kilometers per second (18 miles per second). Planets closer to the Sun travel faster in their orbits and planets further away travel slower.

Sunspots appear dark because they are cooler than the surrounding areas on the Sun, and therefore radiate less light and appear “dark” relative to the areas around them. Sunspot temperatures average about 3800 degrees versus 5800 degrees Celsius for the average surface of the Sun.

Size comparisons: About 1000 Earths would fit inside Jupiter, and about 1000 Jupiters would fit inside the Sun.

Our Solar System, by virtue of its proper motion through our galaxy (the Milky Way) is moving at a speed of 43,000 miles per hour toward the globular cluster of stars known as M13 in the constellation Hercules.

Some of the objects visible in Hubble Space Telescope images are nearly four billion times fainter than the limits of human vision.

The largest mountain in the Solar System is Olympus Mons on Mars. At a height of over 26 km (16 mi.), it is nearly 3 times taller than Mt. Everest. Olympus Mons is also enormous in its width: 600 km (360 mi.) across.

The average distance between stars in the spiral arms of the Milky Way galaxy is currently estimated to be seven light years, or sixty-six trillion kilometers. This distance is equal to roughly 443,000 times the distance between the Earth and Sun.

It Only Takes Space Shuttle 8 Minutes To Accelerate To Its Orbital Speed Of More Than 17,000 Miles Per Hour.

The Space Shuttle main engine weights 1/7 as much as a train engine, but delivers as much horse power as 39 train engines.

Pioneer 11’s speed going past Jupiter was over 107,000 mph, the fastest speed traveled by a human made object.

At almost six billion miles away, Pioneer 10 is the most distant object built by humans.

A Space Shuttle and its boosters ready for launch are same height as the Statue of  Liberty, but weights as much as three times.

Each of the Space Shuttle’s solid rocket boosters burns 50 tons of propellant per second.