Guide to Space
Ten Interesting Facts About Saturn
This article comes from our archive, but we updated it with this video. Saturn is my absolute favorite object in…
How Can You See a Satellite View of Your House?
This is an article from our archive, but we've updated it with this spiffy video. Every now and then I…
Can You See the Great Wall of China from Space?
One popular myth about space exploration is that the Great Wall of China is the only human-built structure that can…
How Many Stars are There in the Universe?
When we look at the night sky, filled with stars, it’s hard to resist counting. Just with the unaided eye,…
How Old Is The Earth?
This article comes from the Universe Today archive, but was updated with this spiffy video. How old is the Earth?…
How Many Planets are in the Solar System?
I’m just going to warn you, this is a controversial topic. Some people get pretty grumpy when you ask: how…
How to See the International Space Station
The International Space Station is one of the most complicated machines ever built and the largest object ever assembled in…
How Fast Does the Earth Rotate?
The Earth turns once on its axis in a day. How fast are you actually going when you're standing on…
How Long Does it Take to Get to Mars?
Crewed mission to Mars are coming, and interest in colonizing the Red Planet is growing. So how long will it…
How Long Does it Take Sunlight to Reach the Earth?
Here's a question... how long does it take sunlight to reach Earth? This sounds like a strange question, but think…