YOU PROBABLY
DIDN'T KNOW

The United States is the only country to have humans walk on the Moon.

It would take 800 years to fly a plane to Pluto.

The Earth isn’t perfectly round. It is actually a bit flat at the poles and bulges out around the equator.

Researchers believe they found a
planet made almost entirely out of diamonds. It’s almost 40 lightyears away, so we probably won’t be getting diamond rings anytime soon.

The Universe is always expanding. It’s getting bigger and bigger every minute.

Footprints from the Apollo astronauts and tracks from lunar rovers will be on the Moon for 100 million years.

There are more stars in the Universe 
than grains of sand on all of Earth's beaches.

The very first live creatures launched into space were fruit flies in 1947—
don’t worry, all the flies came back to Earth alive!

A nebula is a giant cloud of dust and gas floating in space.

Only 12 people have ever set foot on the Moon and no one ever did it more than once.

Halley’s Comet is the most famous
comet and is only seen every 75 years. It is set to be seen again in 2061.

There is a giant cloud of water floating in space.

Galaxies come in three different
shapes: Elliptical, Spiral, and Irregular.

A complete NASA space suit costs roughly $12 million.

The Milky Way Galaxy moves through space at several hundred miles
per second.

Some of the first animals to orbit the Earth were two dogs named Belka and Strelka, two rats, 42 mice, and a rabbit. All animals returned to Earth alive and well.