This, I think, would be an event worth seeing in our lifetime.

JUst imagine seeing 2 planets collide.

check it out:

A Nasa space telescope has found evidence of a high-speed collision between two burgeoning planets orbiting a young star.

Astronomers say the cosmic smash-up is similar to the one that formed our Moon some four billion years ago, when a Mars-sized object crashed into Earth.

In this case, two rocky bodies are thought to have slammed into one another in the last few thousand years..........

Here's the link:


BBC NEWS | Science & Environment | Telescope sees planets collide