Astronomy
Embark on an astronomical journey. Explore the cosmos, study celestial objects, and unravel the mysteries of the universe through astronomy's fascinating realm.
How to Defend Earth Against an Asteroid Strike
This sounds like something from a science fiction movie, but it is a real threat to the whole planet. It can happen any time. A medium sized asteroid of a few kilometers in diameter crashing into the Earth can completely destroy our civilization and exterminate the whole human race, just like it happened to the dinosaurs.