That 3rd link is very cool. Do you know what does the "comet speed" means on it? Is it its speed relative to the earth ?

It's going at 18km per second, so around 65 000 km/h (40,000 mph).

People manage to land something that left from earth starting at a speed of 0.00km/h and then traveled 6.5 billion km to an object going at that speed, all of this happening 500 million km away. It is amazing!