Guide to Space

Which Planets Have Rings?

Planetary rings are an interesting phenomena. The mere mention of these two words tends to conjure up images of Saturn,…

9 years ago

What Is The World’s Widest River?

The Amazon River is a heck of a big tributary. Besides being one of the LONGEST rivers in the world,…

9 years ago

What Was The Impact That Killed The Dinosaurs?

What suddenly made the dinosaurs disappear 65 million or 66 million years ago? Whatever it was, all indications show that…

9 years ago

Asteroids: 10 Interesting Facts About These Space Rocks

At first glance, looking at a bunch of space rocks doesn't sound that exciting. Like, aren't they just a bunch…

9 years ago

Is Everything Actually Shrinking?

Whoa, here's something to think about. Maybe the Universe isn't expanding at all. Maybe everything is actually just shrinking, so…

9 years ago

What Is the Longest River In The World?

Planet Earth boasts some very long rivers, all of which have long and honored histories. The Amazon, Mississippi, Euphrates, Yangtze,…

9 years ago

What’s Happening in the Universe Right Now?

If Dr. Who has taught us anything, it's that time is kind of crazy. And we're not just talking about…

9 years ago

How Are Planets Formed?

How did the Solar System's planets come to be? The leading theory is something known as the "protoplanet hypothesis", which…

9 years ago

What Are the Stars in Orion’s Belt?

Orion dominates the winter sky in the northern hemisphere. Its large size and  collection of bright stars -- such as…

9 years ago

Is The Moon A Planet?

What makes a planet a planet? The Moon is so big compared to the Earth -- roughly one-quarter our planet's…

9 years ago