Guide to Space
Gravity for Kids
[/caption] What keeps us from floating off into space? Why does something I drop fall to the ground? Kids are…
Armillary Sphere
[/caption] Despite the fact that the term “armillary sphere” sounds like a high-tech weapon or something from a science fiction…
Magnetic North Pole
[/caption] The Earth has a magnetic field, known as the magnetosphere, that protects our planet from the particles of the…
What is the Fastest Jet In The World?
If you're thinking the X-15 still holds the record for the fastest jet in the world, think again. That title…
Space Wallpapers
Here are some amazing space wallpapers. If you want to make one of these your computer desktop wallpaper, just click…
Mount Krakatoa
[/caption]Mount Krakatoa is a volcanic island found in Indonesia. Its most famous eruption in 1883 is one of the biggest…
What is Cherenkov Radiation?
Cherenkov radiation is named after the Russian physicist who first worked it out in detail, in 1934, Pavel Alekseyevich Cherenkov…
Composite Volcano
[/caption] Geologists have identified 3 major types of volcanoes. There's the shield volcano, formed from low viscosity lava that can…
Barred Spiral Galaxy
[/caption] As its name implies, a barred spiral galaxy is a spiral galaxy with a bar through the center. Hubble…
Satellite Map of the World
There's no better way to appreciate the planet you live on than to have a great big picture of it…